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Finding the Fourth Proportional to 70,033.47, 105,029.71 and 27,899.55

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Solution

The fourth proportional to 70,033.47, 105,029.71 and 27,899.55 is: 41,841.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,033.47 : 105,029.71 = 27,899.55 : x
  2. Step 2: Convert to fraction form
    70,033.47/105,029.71 = 27,899.55/x
  3. Step 3: Cross multiply
    70,033.47x = 105,029.71 × 27,899.55
  4. Step 4: Simplify right side
    70,033.47x = 2,930,281,703.96
  5. Step 5: Solve for x
    x = 2,930,281,703.96/70,033.47
  6. Step 6: Final answer
    x = 41,841.16

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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.