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Finding the Fourth Proportional to 39,097.80, 58,646.70 and 12,796.20

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Solution

The fourth proportional to 39,097.80, 58,646.70 and 12,796.20 is: 19,194.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,097.80 : 58,646.70 = 12,796.20 : x
  2. Step 2: Convert to fraction form
    39,097.80/58,646.70 = 12,796.20/x
  3. Step 3: Cross multiply
    39,097.80x = 58,646.70 × 12,796.20
  4. Step 4: Simplify right side
    39,097.80x = 750,454,902.54
  5. Step 5: Solve for x
    x = 750,454,902.54/39,097.80
  6. Step 6: Final answer
    x = 19,194.30

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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.