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Finding the Fourth Proportional to 66,248.52, 91,425.38 and 37,959.67

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Solution

The fourth proportional to 66,248.52, 91,425.38 and 37,959.67 is: 52,385.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,248.52 : 91,425.38 = 37,959.67 : x
  2. Step 2: Convert to fraction form
    66,248.52/91,425.38 = 37,959.67/x
  3. Step 3: Cross multiply
    66,248.52x = 91,425.38 × 37,959.67
  4. Step 4: Simplify right side
    66,248.52x = 3,470,477,178.91
  5. Step 5: Solve for x
    x = 3,470,477,178.91/66,248.52
  6. Step 6: Final answer
    x = 52,385.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.