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Finding the Fourth Proportional to 66,391.53, 99,583.65 and 26,952.63

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Solution

The fourth proportional to 66,391.53, 99,583.65 and 26,952.63 is: 40,427.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,391.53 : 99,583.65 = 26,952.63 : x
  2. Step 2: Convert to fraction form
    66,391.53/99,583.65 = 26,952.63/x
  3. Step 3: Cross multiply
    66,391.53x = 99,583.65 × 26,952.63
  4. Step 4: Simplify right side
    66,391.53x = 2,684,041,272.50
  5. Step 5: Solve for x
    x = 2,684,041,272.50/66,391.53
  6. Step 6: Final answer
    x = 40,427.47

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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.