Home / 69,429.60-104,113.20-22,031.28

Finding the Fourth Proportional to 69,429.60, 104,113.20 and 22,031.28

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Solution

The fourth proportional to 69,429.60, 104,113.20 and 22,031.28 is: 33,037.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,429.60 : 104,113.20 = 22,031.28 : x
  2. Step 2: Convert to fraction form
    69,429.60/104,113.20 = 22,031.28/x
  3. Step 3: Cross multiply
    69,429.60x = 104,113.20 × 22,031.28
  4. Step 4: Simplify right side
    69,429.60x = 2,293,747,060.90
  5. Step 5: Solve for x
    x = 2,293,747,060.90/69,429.60
  6. Step 6: Final answer
    x = 33,037.02

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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.