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Finding the Fourth Proportional to 59,900.80, 89,851.20 and 18,342.40

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Solution

The fourth proportional to 59,900.80, 89,851.20 and 18,342.40 is: 27,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,900.80 : 89,851.20 = 18,342.40 : x
  2. Step 2: Convert to fraction form
    59,900.80/89,851.20 = 18,342.40/x
  3. Step 3: Cross multiply
    59,900.80x = 89,851.20 × 18,342.40
  4. Step 4: Simplify right side
    59,900.80x = 1,648,086,650.88
  5. Step 5: Solve for x
    x = 1,648,086,650.88/59,900.80
  6. Step 6: Final answer
    x = 27,513.60

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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.