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Finding the Fourth Proportional to 60,605.33, 90,949.48 and 21,162.45

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Solution

The fourth proportional to 60,605.33, 90,949.48 and 21,162.45 is: 31,758.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,605.33 : 90,949.48 = 21,162.45 : x
  2. Step 2: Convert to fraction form
    60,605.33/90,949.48 = 21,162.45/x
  3. Step 3: Cross multiply
    60,605.33x = 90,949.48 × 21,162.45
  4. Step 4: Simplify right side
    60,605.33x = 1,924,713,823.03
  5. Step 5: Solve for x
    x = 1,924,713,823.03/60,605.33
  6. Step 6: Final answer
    x = 31,758.16

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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.