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Finding the Fourth Proportional to 70,874.95, 97,812.95 and 39,049.57

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Solution

The fourth proportional to 70,874.95, 97,812.95 and 39,049.57 is: 53,891.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,874.95 : 97,812.95 = 39,049.57 : x
  2. Step 2: Convert to fraction form
    70,874.95/97,812.95 = 39,049.57/x
  3. Step 3: Cross multiply
    70,874.95x = 97,812.95 × 39,049.57
  4. Step 4: Simplify right side
    70,874.95x = 3,819,553,442.68
  5. Step 5: Solve for x
    x = 3,819,553,442.68/70,874.95
  6. Step 6: Final answer
    x = 53,891.44

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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.