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Finding the Fourth Proportional to 15,144.66, 22,702.95 and 13,898.88

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Solution

The fourth proportional to 15,144.66, 22,702.95 and 13,898.88 is: 20,835.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,144.66 : 22,702.95 = 13,898.88 : x
  2. Step 2: Convert to fraction form
    15,144.66/22,702.95 = 13,898.88/x
  3. Step 3: Cross multiply
    15,144.66x = 22,702.95 × 13,898.88
  4. Step 4: Simplify right side
    15,144.66x = 315,545,577.70
  5. Step 5: Solve for x
    x = 315,545,577.70/15,144.66
  6. Step 6: Final answer
    x = 20,835.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.