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Finding the Fourth Proportional to 70,404.57, 105,607.17 and 17,814.11

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Solution

The fourth proportional to 70,404.57, 105,607.17 and 17,814.11 is: 26,721.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,404.57 : 105,607.17 = 17,814.11 : x
  2. Step 2: Convert to fraction form
    70,404.57/105,607.17 = 17,814.11/x
  3. Step 3: Cross multiply
    70,404.57x = 105,607.17 × 17,814.11
  4. Step 4: Simplify right side
    70,404.57x = 1,881,297,215.13
  5. Step 5: Solve for x
    x = 1,881,297,215.13/70,404.57
  6. Step 6: Final answer
    x = 26,721.24

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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.