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Finding the Fourth Proportional to 16,655.67, 22,985.15 and 9,102.47

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Solution

The fourth proportional to 16,655.67, 22,985.15 and 9,102.47 is: 12,561.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,655.67 : 22,985.15 = 9,102.47 : x
  2. Step 2: Convert to fraction form
    16,655.67/22,985.15 = 9,102.47/x
  3. Step 3: Cross multiply
    16,655.67x = 22,985.15 × 9,102.47
  4. Step 4: Simplify right side
    16,655.67x = 209,221,523.39
  5. Step 5: Solve for x
    x = 209,221,523.39/16,655.67
  6. Step 6: Final answer
    x = 12,561.58

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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.