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Finding the Fourth Proportional to 10,648.30, 15,972.30 and 4,804.90

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Solution

The fourth proportional to 10,648.30, 15,972.30 and 4,804.90 is: 7,207.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,648.30 : 15,972.30 = 4,804.90 : x
  2. Step 2: Convert to fraction form
    10,648.30/15,972.30 = 4,804.90/x
  3. Step 3: Cross multiply
    10,648.30x = 15,972.30 × 4,804.90
  4. Step 4: Simplify right side
    10,648.30x = 76,745,304.27
  5. Step 5: Solve for x
    x = 76,745,304.27/10,648.30
  6. Step 6: Final answer
    x = 7,207.28

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1.5x scale

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.