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Finding the Fourth Proportional to 15,951.91, 22,014.64 and 13,294.71

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Solution

The fourth proportional to 15,951.91, 22,014.64 and 13,294.71 is: 18,347.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,951.91 : 22,014.64 = 13,294.71 : x
  2. Step 2: Convert to fraction form
    15,951.91/22,014.64 = 13,294.71/x
  3. Step 3: Cross multiply
    15,951.91x = 22,014.64 × 13,294.71
  4. Step 4: Simplify right side
    15,951.91x = 292,678,134.47
  5. Step 5: Solve for x
    x = 292,678,134.47/15,951.91
  6. Step 6: Final answer
    x = 18,347.53

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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.