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Finding the Fourth Proportional to 60,881.95, 91,332.01 and 18,758.50

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Solution

The fourth proportional to 60,881.95, 91,332.01 and 18,758.50 is: 28,140.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,881.95 : 91,332.01 = 18,758.50 : x
  2. Step 2: Convert to fraction form
    60,881.95/91,332.01 = 18,758.50/x
  3. Step 3: Cross multiply
    60,881.95x = 91,332.01 × 18,758.50
  4. Step 4: Simplify right side
    60,881.95x = 1,713,251,712.93
  5. Step 5: Solve for x
    x = 1,713,251,712.93/60,881.95
  6. Step 6: Final answer
    x = 28,140.55

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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.