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Finding the Fourth Proportional to 60,314.80, 90,404.46 and 28,309.58

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Solution

The fourth proportional to 60,314.80, 90,404.46 and 28,309.58 is: 42,432.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,314.80 : 90,404.46 = 28,309.58 : x
  2. Step 2: Convert to fraction form
    60,314.80/90,404.46 = 28,309.58/x
  3. Step 3: Cross multiply
    60,314.80x = 90,404.46 × 28,309.58
  4. Step 4: Simplify right side
    60,314.80x = 2,559,312,292.73
  5. Step 5: Solve for x
    x = 2,559,312,292.73/60,314.80
  6. Step 6: Final answer
    x = 42,432.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.