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Finding the Fourth Proportional to 67,776.48, 101,656.04 and 17,860.43

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Solution

The fourth proportional to 67,776.48, 101,656.04 and 17,860.43 is: 26,788.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,776.48 : 101,656.04 = 17,860.43 : x
  2. Step 2: Convert to fraction form
    67,776.48/101,656.04 = 17,860.43/x
  3. Step 3: Cross multiply
    67,776.48x = 101,656.04 × 17,860.43
  4. Step 4: Simplify right side
    67,776.48x = 1,815,619,988.91
  5. Step 5: Solve for x
    x = 1,815,619,988.91/67,776.48
  6. Step 6: Final answer
    x = 26,788.35

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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.