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Finding the Fourth Proportional to 7,007,400.30, 9,786,445.57 and 7,007,400.30

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Solution

The fourth proportional to 7,007,400.30, 9,786,445.57 and 7,007,400.30 is: 9,786,445.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,007,400.30 : 9,786,445.57 = 7,007,400.30 : x
  2. Step 2: Convert to fraction form
    7,007,400.30/9,786,445.57 = 7,007,400.30/x
  3. Step 3: Cross multiply
    7,007,400.30x = 9,786,445.57 × 7,007,400.30
  4. Step 4: Simplify right side
    7,007,400.30x = 68,577,541,623,151.67
  5. Step 5: Solve for x
    x = 68,577,541,623,151.67/7,007,400.30
  6. Step 6: Final answer
    x = 9,786,445.57

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.