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Finding the Fourth Proportional to 58,700.49, 88,012.43 and 38,649.28

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Solution

The fourth proportional to 58,700.49, 88,012.43 and 38,649.28 is: 57,948.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,700.49 : 88,012.43 = 38,649.28 : x
  2. Step 2: Convert to fraction form
    58,700.49/88,012.43 = 38,649.28/x
  3. Step 3: Cross multiply
    58,700.49x = 88,012.43 × 38,649.28
  4. Step 4: Simplify right side
    58,700.49x = 3,401,617,050.55
  5. Step 5: Solve for x
    x = 3,401,617,050.55/58,700.49
  6. Step 6: Final answer
    x = 57,948.70

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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.