Home / 66,387.29-99,570.41-18,344.57

Finding the Fourth Proportional to 66,387.29, 99,570.41 and 18,344.57

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Solution

The fourth proportional to 66,387.29, 99,570.41 and 18,344.57 is: 27,513.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,387.29 : 99,570.41 = 18,344.57 : x
  2. Step 2: Convert to fraction form
    66,387.29/99,570.41 = 18,344.57/x
  3. Step 3: Cross multiply
    66,387.29x = 99,570.41 × 18,344.57
  4. Step 4: Simplify right side
    66,387.29x = 1,826,576,264.45
  5. Step 5: Solve for x
    x = 1,826,576,264.45/66,387.29
  6. Step 6: Final answer
    x = 27,513.95

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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.