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Finding the Fourth Proportional to 61,171.38, 84,409.65 and 34,308.36

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Solution

The fourth proportional to 61,171.38, 84,409.65 and 34,308.36 is: 47,341.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,171.38 : 84,409.65 = 34,308.36 : x
  2. Step 2: Convert to fraction form
    61,171.38/84,409.65 = 34,308.36/x
  3. Step 3: Cross multiply
    61,171.38x = 84,409.65 × 34,308.36
  4. Step 4: Simplify right side
    61,171.38x = 2,895,956,659.67
  5. Step 5: Solve for x
    x = 2,895,956,659.67/61,171.38
  6. Step 6: Final answer
    x = 47,341.69

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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.