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Finding the Fourth Proportional to 60,091.20, 90,136.80 and 37,929.60

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Solution

The fourth proportional to 60,091.20, 90,136.80 and 37,929.60 is: 56,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,091.20 : 90,136.80 = 37,929.60 : x
  2. Step 2: Convert to fraction form
    60,091.20/90,136.80 = 37,929.60/x
  3. Step 3: Cross multiply
    60,091.20x = 90,136.80 × 37,929.60
  4. Step 4: Simplify right side
    60,091.20x = 3,418,852,769.28
  5. Step 5: Solve for x
    x = 3,418,852,769.28/60,091.20
  6. Step 6: Final answer
    x = 56,894.40

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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.