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Finding the Fourth Proportional to 13,663.76, 20,495.65 and 10,548.32

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Solution

The fourth proportional to 13,663.76, 20,495.65 and 10,548.32 is: 15,822.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.76 : 20,495.65 = 10,548.32 : x
  2. Step 2: Convert to fraction form
    13,663.76/20,495.65 = 10,548.32/x
  3. Step 3: Cross multiply
    13,663.76x = 20,495.65 × 10,548.32
  4. Step 4: Simplify right side
    13,663.76x = 216,194,623.38
  5. Step 5: Solve for x
    x = 216,194,623.38/13,663.76
  6. Step 6: Final answer
    x = 15,822.48

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Similar ratio
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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.