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Finding the Fourth Proportional to 62,238.70, 93,345.90 and 20,685.70

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Solution

The fourth proportional to 62,238.70, 93,345.90 and 20,685.70 is: 31,024.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,238.70 : 93,345.90 = 20,685.70 : x
  2. Step 2: Convert to fraction form
    62,238.70/93,345.90 = 20,685.70/x
  3. Step 3: Cross multiply
    62,238.70x = 93,345.90 × 20,685.70
  4. Step 4: Simplify right side
    62,238.70x = 1,930,925,283.63
  5. Step 5: Solve for x
    x = 1,930,925,283.63/62,238.70
  6. Step 6: Final answer
    x = 31,024.51

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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.