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Finding the Fourth Proportional to 9,663.60, 14,493.16 and 4,728.28

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Solution

The fourth proportional to 9,663.60, 14,493.16 and 4,728.28 is: 7,091.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,663.60 : 14,493.16 = 4,728.28 : x
  2. Step 2: Convert to fraction form
    9,663.60/14,493.16 = 4,728.28/x
  3. Step 3: Cross multiply
    9,663.60x = 14,493.16 × 4,728.28
  4. Step 4: Simplify right side
    9,663.60x = 68,527,718.56
  5. Step 5: Solve for x
    x = 68,527,718.56/9,663.60
  6. Step 6: Final answer
    x = 7,091.32

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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.