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Finding the Fourth Proportional to 58,391.76, 87,600.40 and 18,952.88

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Solution

The fourth proportional to 58,391.76, 87,600.40 and 18,952.88 is: 28,433.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,391.76 : 87,600.40 = 18,952.88 : x
  2. Step 2: Convert to fraction form
    58,391.76/87,600.40 = 18,952.88/x
  3. Step 3: Cross multiply
    58,391.76x = 87,600.40 × 18,952.88
  4. Step 4: Simplify right side
    58,391.76x = 1,660,279,869.15
  5. Step 5: Solve for x
    x = 1,660,279,869.15/58,391.76
  6. Step 6: Final answer
    x = 28,433.46

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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.