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Finding the Fourth Proportional to 5,788.80, 8,704.80 and 4,838.40

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Solution

The fourth proportional to 5,788.80, 8,704.80 and 4,838.40 is: 7,275.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,788.80 : 8,704.80 = 4,838.40 : x
  2. Step 2: Convert to fraction form
    5,788.80/8,704.80 = 4,838.40/x
  3. Step 3: Cross multiply
    5,788.80x = 8,704.80 × 4,838.40
  4. Step 4: Simplify right side
    5,788.80x = 42,117,304.32
  5. Step 5: Solve for x
    x = 42,117,304.32/5,788.80
  6. Step 6: Final answer
    x = 7,275.65

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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.