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Finding the Fourth Proportional to 17,916.61, 24,720.90 and 10,842.88

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Solution

The fourth proportional to 17,916.61, 24,720.90 and 10,842.88 is: 14,960.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,916.61 : 24,720.90 = 10,842.88 : x
  2. Step 2: Convert to fraction form
    17,916.61/24,720.90 = 10,842.88/x
  3. Step 3: Cross multiply
    17,916.61x = 24,720.90 × 10,842.88
  4. Step 4: Simplify right side
    17,916.61x = 268,045,628.59
  5. Step 5: Solve for x
    x = 268,045,628.59/17,916.61
  6. Step 6: Final answer
    x = 14,960.74

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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.