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Finding the Fourth Proportional to 66,300.52, 91,496.65 and 36,087.80

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Solution

The fourth proportional to 66,300.52, 91,496.65 and 36,087.80 is: 49,802.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,300.52 : 91,496.65 = 36,087.80 : x
  2. Step 2: Convert to fraction form
    66,300.52/91,496.65 = 36,087.80/x
  3. Step 3: Cross multiply
    66,300.52x = 91,496.65 × 36,087.80
  4. Step 4: Simplify right side
    66,300.52x = 3,301,912,258.17
  5. Step 5: Solve for x
    x = 3,301,912,258.17/66,300.52
  6. Step 6: Final answer
    x = 49,802.21

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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.