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Finding the Fourth Proportional to 58,570.02, 87,650.91 and 47,916.90

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Solution

The fourth proportional to 58,570.02, 87,650.91 and 47,916.90 is: 71,708.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,570.02 : 87,650.91 = 47,916.90 : x
  2. Step 2: Convert to fraction form
    58,570.02/87,650.91 = 47,916.90/x
  3. Step 3: Cross multiply
    58,570.02x = 87,650.91 × 47,916.90
  4. Step 4: Simplify right side
    58,570.02x = 4,199,959,889.38
  5. Step 5: Solve for x
    x = 4,199,959,889.38/58,570.02
  6. Step 6: Final answer
    x = 71,708.36

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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.