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Finding the Fourth Proportional to 57,672.20, 86,508.30 and 35,413.40

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Solution

The fourth proportional to 57,672.20, 86,508.30 and 35,413.40 is: 53,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,672.20 : 86,508.30 = 35,413.40 : x
  2. Step 2: Convert to fraction form
    57,672.20/86,508.30 = 35,413.40/x
  3. Step 3: Cross multiply
    57,672.20x = 86,508.30 × 35,413.40
  4. Step 4: Simplify right side
    57,672.20x = 3,063,553,031.22
  5. Step 5: Solve for x
    x = 3,063,553,031.22/57,672.20
  6. Step 6: Final answer
    x = 53,120.10

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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.