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Finding the Fourth Proportional to 69,803.91, 96,330.13 and 37,972.87

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Solution

The fourth proportional to 69,803.91, 96,330.13 and 37,972.87 is: 52,402.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,803.91 : 96,330.13 = 37,972.87 : x
  2. Step 2: Convert to fraction form
    69,803.91/96,330.13 = 37,972.87/x
  3. Step 3: Cross multiply
    69,803.91x = 96,330.13 × 37,972.87
  4. Step 4: Simplify right side
    69,803.91x = 3,657,931,167.82
  5. Step 5: Solve for x
    x = 3,657,931,167.82/69,803.91
  6. Step 6: Final answer
    x = 52,402.96

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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.