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Finding the Fourth Proportional to 60,728.64, 91,030.56 and 23,278.56

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Solution

The fourth proportional to 60,728.64, 91,030.56 and 23,278.56 is: 34,893.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,728.64 : 91,030.56 = 23,278.56 : x
  2. Step 2: Convert to fraction form
    60,728.64/91,030.56 = 23,278.56/x
  3. Step 3: Cross multiply
    60,728.64x = 91,030.56 × 23,278.56
  4. Step 4: Simplify right side
    60,728.64x = 2,119,060,352.79
  5. Step 5: Solve for x
    x = 2,119,060,352.79/60,728.64
  6. Step 6: Final answer
    x = 34,893.92

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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.