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Finding the Fourth Proportional to 4,702.88, 7,052.88 and 2,104.40

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Solution

The fourth proportional to 4,702.88, 7,052.88 and 2,104.40 is: 3,155.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,702.88 : 7,052.88 = 2,104.40 : x
  2. Step 2: Convert to fraction form
    4,702.88/7,052.88 = 2,104.40/x
  3. Step 3: Cross multiply
    4,702.88x = 7,052.88 × 2,104.40
  4. Step 4: Simplify right side
    4,702.88x = 14,842,080.67
  5. Step 5: Solve for x
    x = 14,842,080.67/4,702.88
  6. Step 6: Final answer
    x = 3,155.96

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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.