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Finding the Fourth Proportional to 58,223.52, 87,326.76 and 28,633.40

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Solution

The fourth proportional to 58,223.52, 87,326.76 and 28,633.40 is: 42,945.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,223.52 : 87,326.76 = 28,633.40 : x
  2. Step 2: Convert to fraction form
    58,223.52/87,326.76 = 28,633.40/x
  3. Step 3: Cross multiply
    58,223.52x = 87,326.76 × 28,633.40
  4. Step 4: Simplify right side
    58,223.52x = 2,500,462,049.78
  5. Step 5: Solve for x
    x = 2,500,462,049.78/58,223.52
  6. Step 6: Final answer
    x = 42,945.91

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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.