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Finding the Fourth Proportional to 38,153.59, 57,207.90 and 15,657.56

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Solution

The fourth proportional to 38,153.59, 57,207.90 and 15,657.56 is: 23,477.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,153.59 : 57,207.90 = 15,657.56 : x
  2. Step 2: Convert to fraction form
    38,153.59/57,207.90 = 15,657.56/x
  3. Step 3: Cross multiply
    38,153.59x = 57,207.90 × 15,657.56
  4. Step 4: Simplify right side
    38,153.59x = 895,736,113.93
  5. Step 5: Solve for x
    x = 895,736,113.93/38,153.59
  6. Step 6: Final answer
    x = 23,477.11

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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.