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Finding the Fourth Proportional to 71,023.68, 98,024.64 and 67,874.40

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Solution

The fourth proportional to 71,023.68, 98,024.64 and 67,874.40 is: 93,678.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,023.68 : 98,024.64 = 67,874.40 : x
  2. Step 2: Convert to fraction form
    71,023.68/98,024.64 = 67,874.40/x
  3. Step 3: Cross multiply
    71,023.68x = 98,024.64 × 67,874.40
  4. Step 4: Simplify right side
    71,023.68x = 6,653,363,625.22
  5. Step 5: Solve for x
    x = 6,653,363,625.22/71,023.68
  6. Step 6: Final answer
    x = 93,678.10

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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.