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Finding the Fourth Proportional to 10,497.71, 14,487.02 and 5,781.98

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Solution

The fourth proportional to 10,497.71, 14,487.02 and 5,781.98 is: 7,979.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,497.71 : 14,487.02 = 5,781.98 : x
  2. Step 2: Convert to fraction form
    10,497.71/14,487.02 = 5,781.98/x
  3. Step 3: Cross multiply
    10,497.71x = 14,487.02 × 5,781.98
  4. Step 4: Simplify right side
    10,497.71x = 83,763,558.55
  5. Step 5: Solve for x
    x = 83,763,558.55/10,497.71
  6. Step 6: Final answer
    x = 7,979.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.