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Finding the Fourth Proportional to 7,368.10, 11,052.15 and 6,561.70

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Solution

The fourth proportional to 7,368.10, 11,052.15 and 6,561.70 is: 9,842.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,368.10 : 11,052.15 = 6,561.70 : x
  2. Step 2: Convert to fraction form
    7,368.10/11,052.15 = 6,561.70/x
  3. Step 3: Cross multiply
    7,368.10x = 11,052.15 × 6,561.70
  4. Step 4: Simplify right side
    7,368.10x = 72,520,892.66
  5. Step 5: Solve for x
    x = 72,520,892.66/7,368.10
  6. Step 6: Final answer
    x = 9,842.55

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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.