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Finding the Fourth Proportional to 60,438.30, 90,643.78 and 22,985.03

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Solution

The fourth proportional to 60,438.30, 90,643.78 and 22,985.03 is: 34,472.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,438.30 : 90,643.78 = 22,985.03 : x
  2. Step 2: Convert to fraction form
    60,438.30/90,643.78 = 22,985.03/x
  3. Step 3: Cross multiply
    60,438.30x = 90,643.78 × 22,985.03
  4. Step 4: Simplify right side
    60,438.30x = 2,083,450,002.61
  5. Step 5: Solve for x
    x = 2,083,450,002.61/60,438.30
  6. Step 6: Final answer
    x = 34,472.35

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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.