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Finding the Fourth Proportional to 49,487.70, 74,225.61 and 13,951.70

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Solution

The fourth proportional to 49,487.70, 74,225.61 and 13,951.70 is: 20,925.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,487.70 : 74,225.61 = 13,951.70 : x
  2. Step 2: Convert to fraction form
    49,487.70/74,225.61 = 13,951.70/x
  3. Step 3: Cross multiply
    49,487.70x = 74,225.61 × 13,951.70
  4. Step 4: Simplify right side
    49,487.70x = 1,035,573,443.04
  5. Step 5: Solve for x
    x = 1,035,573,443.04/49,487.70
  6. Step 6: Final answer
    x = 20,925.88

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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.