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Finding the Fourth Proportional to 60,472.40, 90,672.76 and 18,339.60

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Solution

The fourth proportional to 60,472.40, 90,672.76 and 18,339.60 is: 27,498.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,472.40 : 90,672.76 = 18,339.60 : x
  2. Step 2: Convert to fraction form
    60,472.40/90,672.76 = 18,339.60/x
  3. Step 3: Cross multiply
    60,472.40x = 90,672.76 × 18,339.60
  4. Step 4: Simplify right side
    60,472.40x = 1,662,902,149.30
  5. Step 5: Solve for x
    x = 1,662,902,149.30/60,472.40
  6. Step 6: Final answer
    x = 27,498.53

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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.