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Finding the Fourth Proportional to 67,981.47, 101,472.89 and 60,000.67

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Solution

The fourth proportional to 67,981.47, 101,472.89 and 60,000.67 is: 89,560.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,981.47 : 101,472.89 = 60,000.67 : x
  2. Step 2: Convert to fraction form
    67,981.47/101,472.89 = 60,000.67/x
  3. Step 3: Cross multiply
    67,981.47x = 101,472.89 × 60,000.67
  4. Step 4: Simplify right side
    67,981.47x = 6,088,441,386.84
  5. Step 5: Solve for x
    x = 6,088,441,386.84/67,981.47
  6. Step 6: Final answer
    x = 89,560.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.