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Finding the Fourth Proportional to 60,525.11, 90,802.25 and 18,972.11

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Solution

The fourth proportional to 60,525.11, 90,802.25 and 18,972.11 is: 28,462.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,525.11 : 90,802.25 = 18,972.11 : x
  2. Step 2: Convert to fraction form
    60,525.11/90,802.25 = 18,972.11/x
  3. Step 3: Cross multiply
    60,525.11x = 90,802.25 × 18,972.11
  4. Step 4: Simplify right side
    60,525.11x = 1,722,710,275.25
  5. Step 5: Solve for x
    x = 1,722,710,275.25/60,525.11
  6. Step 6: Final answer
    x = 28,462.74

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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.