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Finding the Fourth Proportional to 70,195.53, 96,869.88 and 38,364.42

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Solution

The fourth proportional to 70,195.53, 96,869.88 and 38,364.42 is: 52,942.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,195.53 : 96,869.88 = 38,364.42 : x
  2. Step 2: Convert to fraction form
    70,195.53/96,869.88 = 38,364.42/x
  3. Step 3: Cross multiply
    70,195.53x = 96,869.88 × 38,364.42
  4. Step 4: Simplify right side
    70,195.53x = 3,716,356,761.67
  5. Step 5: Solve for x
    x = 3,716,356,761.67/70,195.53
  6. Step 6: Final answer
    x = 52,942.93

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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.