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Finding the Fourth Proportional to 58,585.40, 87,886.64 and 18,591

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Solution

The fourth proportional to 58,585.40, 87,886.64 and 18,591 is: 27,889.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,585.40 : 87,886.64 = 18,591 : x
  2. Step 2: Convert to fraction form
    58,585.40/87,886.64 = 18,591/x
  3. Step 3: Cross multiply
    58,585.40x = 87,886.64 × 18,591
  4. Step 4: Simplify right side
    58,585.40x = 1,633,900,524.24
  5. Step 5: Solve for x
    x = 1,633,900,524.24/58,585.40
  6. Step 6: Final answer
    x = 27,889.21

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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.