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Finding the Fourth Proportional to 38,892.80, 58,339.20 and 23,340.80

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Solution

The fourth proportional to 38,892.80, 58,339.20 and 23,340.80 is: 35,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,892.80 : 58,339.20 = 23,340.80 : x
  2. Step 2: Convert to fraction form
    38,892.80/58,339.20 = 23,340.80/x
  3. Step 3: Cross multiply
    38,892.80x = 58,339.20 × 23,340.80
  4. Step 4: Simplify right side
    38,892.80x = 1,361,683,599.36
  5. Step 5: Solve for x
    x = 1,361,683,599.36/38,892.80
  6. Step 6: Final answer
    x = 35,011.20

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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.