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Finding the Fourth Proportional to 60,828.66, 91,242.90 and 19,272.42

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Solution

The fourth proportional to 60,828.66, 91,242.90 and 19,272.42 is: 28,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,828.66 : 91,242.90 = 19,272.42 : x
  2. Step 2: Convert to fraction form
    60,828.66/91,242.90 = 19,272.42/x
  3. Step 3: Cross multiply
    60,828.66x = 91,242.90 × 19,272.42
  4. Step 4: Simplify right side
    60,828.66x = 1,758,471,490.82
  5. Step 5: Solve for x
    x = 1,758,471,490.82/60,828.66
  6. Step 6: Final answer
    x = 28,908.60

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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.