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Finding the Fourth Proportional to 7,963.48, 10,988 and 4,605.06

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Solution

The fourth proportional to 7,963.48, 10,988 and 4,605.06 is: 6,354.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.48 : 10,988 = 4,605.06 : x
  2. Step 2: Convert to fraction form
    7,963.48/10,988 = 4,605.06/x
  3. Step 3: Cross multiply
    7,963.48x = 10,988 × 4,605.06
  4. Step 4: Simplify right side
    7,963.48x = 50,600,399.28
  5. Step 5: Solve for x
    x = 50,600,399.28/7,963.48
  6. Step 6: Final answer
    x = 6,354.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.