Home / 66,678.20-92,024.62-38,385.08

Finding the Fourth Proportional to 66,678.20, 92,024.62 and 38,385.08

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Solution

The fourth proportional to 66,678.20, 92,024.62 and 38,385.08 is: 52,976.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,678.20 : 92,024.62 = 38,385.08 : x
  2. Step 2: Convert to fraction form
    66,678.20/92,024.62 = 38,385.08/x
  3. Step 3: Cross multiply
    66,678.20x = 92,024.62 × 38,385.08
  4. Step 4: Simplify right side
    66,678.20x = 3,532,372,400.67
  5. Step 5: Solve for x
    x = 3,532,372,400.67/66,678.20
  6. Step 6: Final answer
    x = 52,976.42

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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.