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Finding the Fourth Proportional to 60,600.80, 90,901.20 and 19,042.40

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Solution

The fourth proportional to 60,600.80, 90,901.20 and 19,042.40 is: 28,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,600.80 : 90,901.20 = 19,042.40 : x
  2. Step 2: Convert to fraction form
    60,600.80/90,901.20 = 19,042.40/x
  3. Step 3: Cross multiply
    60,600.80x = 90,901.20 × 19,042.40
  4. Step 4: Simplify right side
    60,600.80x = 1,730,977,010.88
  5. Step 5: Solve for x
    x = 1,730,977,010.88/60,600.80
  6. Step 6: Final answer
    x = 28,563.60

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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.