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Finding the Fourth Proportional to 58,700.74, 88,012.81 and 38,649.54

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Solution

The fourth proportional to 58,700.74, 88,012.81 and 38,649.54 is: 57,949.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,700.74 : 88,012.81 = 38,649.54 : x
  2. Step 2: Convert to fraction form
    58,700.74/88,012.81 = 38,649.54/x
  3. Step 3: Cross multiply
    58,700.74x = 88,012.81 × 38,649.54
  4. Step 4: Simplify right side
    58,700.74x = 3,401,654,427.36
  5. Step 5: Solve for x
    x = 3,401,654,427.36/58,700.74
  6. Step 6: Final answer
    x = 57,949.09

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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.