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Finding the Fourth Proportional to 6,646,326.30, 9,969,489.45 and 6,646,326.30

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Solution

The fourth proportional to 6,646,326.30, 9,969,489.45 and 6,646,326.30 is: 9,969,489.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,646,326.30 : 9,969,489.45 = 6,646,326.30 : x
  2. Step 2: Convert to fraction form
    6,646,326.30/9,969,489.45 = 6,646,326.30/x
  3. Step 3: Cross multiply
    6,646,326.30x = 9,969,489.45 × 6,646,326.30
  4. Step 4: Simplify right side
    6,646,326.30x = 66,260,479,929,107.53
  5. Step 5: Solve for x
    x = 66,260,479,929,107.53/6,646,326.30
  6. Step 6: Final answer
    x = 9,969,489.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.