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Finding the Fourth Proportional to 62,592.80, 93,889.20 and 31,416.80

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Solution

The fourth proportional to 62,592.80, 93,889.20 and 31,416.80 is: 47,125.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,592.80 : 93,889.20 = 31,416.80 : x
  2. Step 2: Convert to fraction form
    62,592.80/93,889.20 = 31,416.80/x
  3. Step 3: Cross multiply
    62,592.80x = 93,889.20 × 31,416.80
  4. Step 4: Simplify right side
    62,592.80x = 2,949,698,218.56
  5. Step 5: Solve for x
    x = 2,949,698,218.56/62,592.80
  6. Step 6: Final answer
    x = 47,125.20

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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.