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Finding the Fourth Proportional to 69,981.84, 96,575.94 and 38,150.70

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Solution

The fourth proportional to 69,981.84, 96,575.94 and 38,150.70 is: 52,648.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,981.84 : 96,575.94 = 38,150.70 : x
  2. Step 2: Convert to fraction form
    69,981.84/96,575.94 = 38,150.70/x
  3. Step 3: Cross multiply
    69,981.84x = 96,575.94 × 38,150.70
  4. Step 4: Simplify right side
    69,981.84x = 3,684,439,714.16
  5. Step 5: Solve for x
    x = 3,684,439,714.16/69,981.84
  6. Step 6: Final answer
    x = 52,648.51

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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.