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Finding the Fourth Proportional to 28,046.60, 42,070.17 and 8,325.17

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Solution

The fourth proportional to 28,046.60, 42,070.17 and 8,325.17 is: 12,487.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,046.60 : 42,070.17 = 8,325.17 : x
  2. Step 2: Convert to fraction form
    28,046.60/42,070.17 = 8,325.17/x
  3. Step 3: Cross multiply
    28,046.60x = 42,070.17 × 8,325.17
  4. Step 4: Simplify right side
    28,046.60x = 350,241,106.83
  5. Step 5: Solve for x
    x = 350,241,106.83/28,046.60
  6. Step 6: Final answer
    x = 12,487.83

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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.