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Finding the Fourth Proportional to 70,567.76, 105,847.92 and 17,974.04

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Solution

The fourth proportional to 70,567.76, 105,847.92 and 17,974.04 is: 26,960.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,567.76 : 105,847.92 = 17,974.04 : x
  2. Step 2: Convert to fraction form
    70,567.76/105,847.92 = 17,974.04/x
  3. Step 3: Cross multiply
    70,567.76x = 105,847.92 × 17,974.04
  4. Step 4: Simplify right side
    70,567.76x = 1,902,514,748.00
  5. Step 5: Solve for x
    x = 1,902,514,748.00/70,567.76
  6. Step 6: Final answer
    x = 26,960.11

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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.