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Finding the Fourth Proportional to 69,055.65, 103,638.15 and 26,955.90

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Solution

The fourth proportional to 69,055.65, 103,638.15 and 26,955.90 is: 40,455.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,055.65 : 103,638.15 = 26,955.90 : x
  2. Step 2: Convert to fraction form
    69,055.65/103,638.15 = 26,955.90/x
  3. Step 3: Cross multiply
    69,055.65x = 103,638.15 × 26,955.90
  4. Step 4: Simplify right side
    69,055.65x = 2,793,659,607.59
  5. Step 5: Solve for x
    x = 2,793,659,607.59/69,055.65
  6. Step 6: Final answer
    x = 40,455.19

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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.