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Finding the Fourth Proportional to 60,231.24, 90,353.02 and 20,788.24

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Solution

The fourth proportional to 60,231.24, 90,353.02 and 20,788.24 is: 31,184.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,231.24 : 90,353.02 = 20,788.24 : x
  2. Step 2: Convert to fraction form
    60,231.24/90,353.02 = 20,788.24/x
  3. Step 3: Cross multiply
    60,231.24x = 90,353.02 × 20,788.24
  4. Step 4: Simplify right side
    60,231.24x = 1,878,280,264.48
  5. Step 5: Solve for x
    x = 1,878,280,264.48/60,231.24
  6. Step 6: Final answer
    x = 31,184.49

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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.