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Finding the Fourth Proportional to 60,042.55, 90,065.66 and 20,599.11

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Solution

The fourth proportional to 60,042.55, 90,065.66 and 20,599.11 is: 30,899.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,042.55 : 90,065.66 = 20,599.11 : x
  2. Step 2: Convert to fraction form
    60,042.55/90,065.66 = 20,599.11/x
  3. Step 3: Cross multiply
    60,042.55x = 90,065.66 × 20,599.11
  4. Step 4: Simplify right side
    60,042.55x = 1,855,272,437.56
  5. Step 5: Solve for x
    x = 1,855,272,437.56/60,042.55
  6. Step 6: Final answer
    x = 30,899.29

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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.