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Finding the Fourth Proportional to 60,220.80, 90,331.20 and 30,696.30

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Solution

The fourth proportional to 60,220.80, 90,331.20 and 30,696.30 is: 46,044.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,220.80 : 90,331.20 = 30,696.30 : x
  2. Step 2: Convert to fraction form
    60,220.80/90,331.20 = 30,696.30/x
  3. Step 3: Cross multiply
    60,220.80x = 90,331.20 × 30,696.30
  4. Step 4: Simplify right side
    60,220.80x = 2,772,833,614.56
  5. Step 5: Solve for x
    x = 2,772,833,614.56/60,220.80
  6. Step 6: Final answer
    x = 46,044.45

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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.