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Finding the Fourth Proportional to 69,389.40, 104,009.58 and 29,965.08

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Solution

The fourth proportional to 69,389.40, 104,009.58 and 29,965.08 is: 44,915.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,389.40 : 104,009.58 = 29,965.08 : x
  2. Step 2: Convert to fraction form
    69,389.40/104,009.58 = 29,965.08/x
  3. Step 3: Cross multiply
    69,389.40x = 104,009.58 × 29,965.08
  4. Step 4: Simplify right side
    69,389.40x = 3,116,655,385.47
  5. Step 5: Solve for x
    x = 3,116,655,385.47/69,389.40
  6. Step 6: Final answer
    x = 44,915.44

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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.