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Finding the Fourth Proportional to 58,316.64, 87,474.24 and 18,872.88

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Solution

The fourth proportional to 58,316.64, 87,474.24 and 18,872.88 is: 28,309.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,316.64 : 87,474.24 = 18,872.88 : x
  2. Step 2: Convert to fraction form
    58,316.64/87,474.24 = 18,872.88/x
  3. Step 3: Cross multiply
    58,316.64x = 87,474.24 × 18,872.88
  4. Step 4: Simplify right side
    58,316.64x = 1,650,890,834.61
  5. Step 5: Solve for x
    x = 1,650,890,834.61/58,316.64
  6. Step 6: Final answer
    x = 28,309.09

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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.