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Finding the Fourth Proportional to 62,433.72, 93,655.76 and 20,312.80

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Solution

The fourth proportional to 62,433.72, 93,655.76 and 20,312.80 is: 30,470.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,433.72 : 93,655.76 = 20,312.80 : x
  2. Step 2: Convert to fraction form
    62,433.72/93,655.76 = 20,312.80/x
  3. Step 3: Cross multiply
    62,433.72x = 93,655.76 × 20,312.80
  4. Step 4: Simplify right side
    62,433.72x = 1,902,410,721.73
  5. Step 5: Solve for x
    x = 1,902,410,721.73/62,433.72
  6. Step 6: Final answer
    x = 30,470.89

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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.