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Finding the Fourth Proportional to 9,891.40, 14,837.10 and 6,593.80

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Solution

The fourth proportional to 9,891.40, 14,837.10 and 6,593.80 is: 9,890.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,891.40 : 14,837.10 = 6,593.80 : x
  2. Step 2: Convert to fraction form
    9,891.40/14,837.10 = 6,593.80/x
  3. Step 3: Cross multiply
    9,891.40x = 14,837.10 × 6,593.80
  4. Step 4: Simplify right side
    9,891.40x = 97,832,869.98
  5. Step 5: Solve for x
    x = 97,832,869.98/9,891.40
  6. Step 6: Final answer
    x = 9,890.70

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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.