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Finding the Fourth Proportional to 58,543.82, 87,745.01 and 28,513.05

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Solution

The fourth proportional to 58,543.82, 87,745.01 and 28,513.05 is: 42,735.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,543.82 : 87,745.01 = 28,513.05 : x
  2. Step 2: Convert to fraction form
    58,543.82/87,745.01 = 28,513.05/x
  3. Step 3: Cross multiply
    58,543.82x = 87,745.01 × 28,513.05
  4. Step 4: Simplify right side
    58,543.82x = 2,501,877,690.57
  5. Step 5: Solve for x
    x = 2,501,877,690.57/58,543.82
  6. Step 6: Final answer
    x = 42,735.13

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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.