Home / 66,908.76-92,338.56-38,613.84

Finding the Fourth Proportional to 66,908.76, 92,338.56 and 38,613.84

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Solution

The fourth proportional to 66,908.76, 92,338.56 and 38,613.84 is: 53,289.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,908.76 : 92,338.56 = 38,613.84 : x
  2. Step 2: Convert to fraction form
    66,908.76/92,338.56 = 38,613.84/x
  3. Step 3: Cross multiply
    66,908.76x = 92,338.56 × 38,613.84
  4. Step 4: Simplify right side
    66,908.76x = 3,565,546,381.67
  5. Step 5: Solve for x
    x = 3,565,546,381.67/66,908.76
  6. Step 6: Final answer
    x = 53,289.68

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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.