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Finding the Fourth Proportional to 10,663.02, 14,724.24 and 6,690.96

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Solution

The fourth proportional to 10,663.02, 14,724.24 and 6,690.96 is: 9,239.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,663.02 : 14,724.24 = 6,690.96 : x
  2. Step 2: Convert to fraction form
    10,663.02/14,724.24 = 6,690.96/x
  3. Step 3: Cross multiply
    10,663.02x = 14,724.24 × 6,690.96
  4. Step 4: Simplify right side
    10,663.02x = 98,519,300.87
  5. Step 5: Solve for x
    x = 98,519,300.87/10,663.02
  6. Step 6: Final answer
    x = 9,239.34

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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.