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Finding the Fourth Proportional to 25,170.72, 37,756.80 and 6,702.72

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Solution

The fourth proportional to 25,170.72, 37,756.80 and 6,702.72 is: 10,054.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,170.72 : 37,756.80 = 6,702.72 : x
  2. Step 2: Convert to fraction form
    25,170.72/37,756.80 = 6,702.72/x
  3. Step 3: Cross multiply
    25,170.72x = 37,756.80 × 6,702.72
  4. Step 4: Simplify right side
    25,170.72x = 253,073,258.50
  5. Step 5: Solve for x
    x = 253,073,258.50/25,170.72
  6. Step 6: Final answer
    x = 10,054.27

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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.