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Finding the Fourth Proportional to 60,398.90, 90,600.23 and 28,812.38

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Solution

The fourth proportional to 60,398.90, 90,600.23 and 28,812.38 is: 43,219.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,398.90 : 90,600.23 = 28,812.38 : x
  2. Step 2: Convert to fraction form
    60,398.90/90,600.23 = 28,812.38/x
  3. Step 3: Cross multiply
    60,398.90x = 90,600.23 × 28,812.38
  4. Step 4: Simplify right side
    60,398.90x = 2,610,408,254.85
  5. Step 5: Solve for x
    x = 2,610,408,254.85/60,398.90
  6. Step 6: Final answer
    x = 43,219.47

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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.