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Finding the Fourth Proportional to 69,078.76, 103,618.14 and 27,526.12

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Solution

The fourth proportional to 69,078.76, 103,618.14 and 27,526.12 is: 41,289.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,078.76 : 103,618.14 = 27,526.12 : x
  2. Step 2: Convert to fraction form
    69,078.76/103,618.14 = 27,526.12/x
  3. Step 3: Cross multiply
    69,078.76x = 103,618.14 × 27,526.12
  4. Step 4: Simplify right side
    69,078.76x = 2,852,205,355.82
  5. Step 5: Solve for x
    x = 2,852,205,355.82/69,078.76
  6. Step 6: Final answer
    x = 41,289.18

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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.