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Finding the Fourth Proportional to 58,908.85, 88,371.47 and 18,929.03

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Solution

The fourth proportional to 58,908.85, 88,371.47 and 18,929.03 is: 28,396.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,908.85 : 88,371.47 = 18,929.03 : x
  2. Step 2: Convert to fraction form
    58,908.85/88,371.47 = 18,929.03/x
  3. Step 3: Cross multiply
    58,908.85x = 88,371.47 × 18,929.03
  4. Step 4: Simplify right side
    58,908.85x = 1,672,785,812.24
  5. Step 5: Solve for x
    x = 1,672,785,812.24/58,908.85
  6. Step 6: Final answer
    x = 28,396.17

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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.