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Finding the Fourth Proportional to 69,980.68, 96,574.73 and 38,149.55

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Solution

The fourth proportional to 69,980.68, 96,574.73 and 38,149.55 is: 52,647.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,980.68 : 96,574.73 = 38,149.55 : x
  2. Step 2: Convert to fraction form
    69,980.68/96,574.73 = 38,149.55/x
  3. Step 3: Cross multiply
    69,980.68x = 96,574.73 × 38,149.55
  4. Step 4: Simplify right side
    69,980.68x = 3,684,282,394.00
  5. Step 5: Solve for x
    x = 3,684,282,394.00/69,980.68
  6. Step 6: Final answer
    x = 52,647.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.