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Finding the Fourth Proportional to 66,702.32, 99,938.04 and 35,065.28

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Solution

The fourth proportional to 66,702.32, 99,938.04 and 35,065.28 is: 52,537.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,702.32 : 99,938.04 = 35,065.28 : x
  2. Step 2: Convert to fraction form
    66,702.32/99,938.04 = 35,065.28/x
  3. Step 3: Cross multiply
    66,702.32x = 99,938.04 × 35,065.28
  4. Step 4: Simplify right side
    66,702.32x = 3,504,355,355.25
  5. Step 5: Solve for x
    x = 3,504,355,355.25/66,702.32
  6. Step 6: Final answer
    x = 52,537.23

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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.