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Finding the Fourth Proportional to 69,920.55, 96,492.15 and 38,091.42

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Solution

The fourth proportional to 69,920.55, 96,492.15 and 38,091.42 is: 52,567.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,920.55 : 96,492.15 = 38,091.42 : x
  2. Step 2: Convert to fraction form
    69,920.55/96,492.15 = 38,091.42/x
  3. Step 3: Cross multiply
    69,920.55x = 96,492.15 × 38,091.42
  4. Step 4: Simplify right side
    69,920.55x = 3,675,523,012.35
  5. Step 5: Solve for x
    x = 3,675,523,012.35/69,920.55
  6. Step 6: Final answer
    x = 52,567.14

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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.