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Finding the Fourth Proportional to 69,873, 96,426.45 and 38,043.63

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Solution

The fourth proportional to 69,873, 96,426.45 and 38,043.63 is: 52,501.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,873 : 96,426.45 = 38,043.63 : x
  2. Step 2: Convert to fraction form
    69,873/96,426.45 = 38,043.63/x
  3. Step 3: Cross multiply
    69,873x = 96,426.45 × 38,043.63
  4. Step 4: Simplify right side
    69,873x = 3,668,412,186.01
  5. Step 5: Solve for x
    x = 3,668,412,186.01/69,873
  6. Step 6: Final answer
    x = 52,501.14

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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.