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Finding the Fourth Proportional to 48,407.20, 72,610.80 and 34,410.40

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Solution

The fourth proportional to 48,407.20, 72,610.80 and 34,410.40 is: 51,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,407.20 : 72,610.80 = 34,410.40 : x
  2. Step 2: Convert to fraction form
    48,407.20/72,610.80 = 34,410.40/x
  3. Step 3: Cross multiply
    48,407.20x = 72,610.80 × 34,410.40
  4. Step 4: Simplify right side
    48,407.20x = 2,498,566,672.32
  5. Step 5: Solve for x
    x = 2,498,566,672.32/48,407.20
  6. Step 6: Final answer
    x = 51,615.60

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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.