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Finding the Fourth Proportional to 66,793.80, 92,156.52 and 38,494.08

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Solution

The fourth proportional to 66,793.80, 92,156.52 and 38,494.08 is: 53,110.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,793.80 : 92,156.52 = 38,494.08 : x
  2. Step 2: Convert to fraction form
    66,793.80/92,156.52 = 38,494.08/x
  3. Step 3: Cross multiply
    66,793.80x = 92,156.52 × 38,494.08
  4. Step 4: Simplify right side
    66,793.80x = 3,547,480,453.40
  5. Step 5: Solve for x
    x = 3,547,480,453.40/66,793.80
  6. Step 6: Final answer
    x = 53,110.92

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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.