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Finding the Fourth Proportional to 17,857.71, 24,641.99 and 9,899.27

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Solution

The fourth proportional to 17,857.71, 24,641.99 and 9,899.27 is: 13,660.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.71 : 24,641.99 = 9,899.27 : x
  2. Step 2: Convert to fraction form
    17,857.71/24,641.99 = 9,899.27/x
  3. Step 3: Cross multiply
    17,857.71x = 24,641.99 × 9,899.27
  4. Step 4: Simplify right side
    17,857.71x = 243,937,539.64
  5. Step 5: Solve for x
    x = 243,937,539.64/17,857.71
  6. Step 6: Final answer
    x = 13,660.07

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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.