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Finding the Fourth Proportional to 32,148.52, 48,222.78 and 15,721

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Solution

The fourth proportional to 32,148.52, 48,222.78 and 15,721 is: 23,581.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,148.52 : 48,222.78 = 15,721 : x
  2. Step 2: Convert to fraction form
    32,148.52/48,222.78 = 15,721/x
  3. Step 3: Cross multiply
    32,148.52x = 48,222.78 × 15,721
  4. Step 4: Simplify right side
    32,148.52x = 758,110,324.38
  5. Step 5: Solve for x
    x = 758,110,324.38/32,148.52
  6. Step 6: Final answer
    x = 23,581.50

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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.