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Finding the Fourth Proportional to 58,646.88, 80,970.12 and 38,539.44

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Solution

The fourth proportional to 58,646.88, 80,970.12 and 38,539.44 is: 53,209.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,646.88 : 80,970.12 = 38,539.44 : x
  2. Step 2: Convert to fraction form
    58,646.88/80,970.12 = 38,539.44/x
  3. Step 3: Cross multiply
    58,646.88x = 80,970.12 × 38,539.44
  4. Step 4: Simplify right side
    58,646.88x = 3,120,543,081.53
  5. Step 5: Solve for x
    x = 3,120,543,081.53/58,646.88
  6. Step 6: Final answer
    x = 53,209.02

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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.