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Finding the Fourth Proportional to 60,551.76, 90,832.29 and 18,435.45

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Solution

The fourth proportional to 60,551.76, 90,832.29 and 18,435.45 is: 27,654.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,551.76 : 90,832.29 = 18,435.45 : x
  2. Step 2: Convert to fraction form
    60,551.76/90,832.29 = 18,435.45/x
  3. Step 3: Cross multiply
    60,551.76x = 90,832.29 × 18,435.45
  4. Step 4: Simplify right side
    60,551.76x = 1,674,534,515.87
  5. Step 5: Solve for x
    x = 1,674,534,515.87/60,551.76
  6. Step 6: Final answer
    x = 27,654.60

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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.