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Finding the Fourth Proportional to 10,663.84, 16,018.98 and 10,313.92

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Solution

The fourth proportional to 10,663.84, 16,018.98 and 10,313.92 is: 15,493.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,663.84 : 16,018.98 = 10,313.92 : x
  2. Step 2: Convert to fraction form
    10,663.84/16,018.98 = 10,313.92/x
  3. Step 3: Cross multiply
    10,663.84x = 16,018.98 × 10,313.92
  4. Step 4: Simplify right side
    10,663.84x = 165,218,478.20
  5. Step 5: Solve for x
    x = 165,218,478.20/10,663.84
  6. Step 6: Final answer
    x = 15,493.34

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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.