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Finding the Fourth Proportional to 69,005.68, 103,508.52 and 55,089.52

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Solution

The fourth proportional to 69,005.68, 103,508.52 and 55,089.52 is: 82,634.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,005.68 : 103,508.52 = 55,089.52 : x
  2. Step 2: Convert to fraction form
    69,005.68/103,508.52 = 55,089.52/x
  3. Step 3: Cross multiply
    69,005.68x = 103,508.52 × 55,089.52
  4. Step 4: Simplify right side
    69,005.68x = 5,702,234,682.71
  5. Step 5: Solve for x
    x = 5,702,234,682.71/69,005.68
  6. Step 6: Final answer
    x = 82,634.28

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1.5x scale

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.