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Finding the Fourth Proportional to 66,283.66, 91,471.47 and 36,069.10

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Solution

The fourth proportional to 66,283.66, 91,471.47 and 36,069.10 is: 49,775.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,283.66 : 91,471.47 = 36,069.10 : x
  2. Step 2: Convert to fraction form
    66,283.66/91,471.47 = 36,069.10/x
  3. Step 3: Cross multiply
    66,283.66x = 91,471.47 × 36,069.10
  4. Step 4: Simplify right side
    66,283.66x = 3,299,293,598.58
  5. Step 5: Solve for x
    x = 3,299,293,598.58/66,283.66
  6. Step 6: Final answer
    x = 49,775.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.