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Finding the Fourth Proportional to 17,685.88, 24,407.68 and 10,513.88

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Solution

The fourth proportional to 17,685.88, 24,407.68 and 10,513.88 is: 14,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,685.88 : 24,407.68 = 10,513.88 : x
  2. Step 2: Convert to fraction form
    17,685.88/24,407.68 = 10,513.88/x
  3. Step 3: Cross multiply
    17,685.88x = 24,407.68 × 10,513.88
  4. Step 4: Simplify right side
    17,685.88x = 256,619,418.60
  5. Step 5: Solve for x
    x = 256,619,418.60/17,685.88
  6. Step 6: Final answer
    x = 14,509.85

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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.