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Finding the Fourth Proportional to 40,573.84, 60,860.75 and 15,278.11

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Solution

The fourth proportional to 40,573.84, 60,860.75 and 15,278.11 is: 22,917.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,573.84 : 60,860.75 = 15,278.11 : x
  2. Step 2: Convert to fraction form
    40,573.84/60,860.75 = 15,278.11/x
  3. Step 3: Cross multiply
    40,573.84x = 60,860.75 × 15,278.11
  4. Step 4: Simplify right side
    40,573.84x = 929,837,233.18
  5. Step 5: Solve for x
    x = 929,837,233.18/40,573.84
  6. Step 6: Final answer
    x = 22,917.16

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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.