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Finding the Fourth Proportional to 18,503.16, 25,534.49 and 10,005.27

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Solution

The fourth proportional to 18,503.16, 25,534.49 and 10,005.27 is: 13,807.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,503.16 : 25,534.49 = 10,005.27 : x
  2. Step 2: Convert to fraction form
    18,503.16/25,534.49 = 10,005.27/x
  3. Step 3: Cross multiply
    18,503.16x = 25,534.49 × 10,005.27
  4. Step 4: Simplify right side
    18,503.16x = 255,479,416.74
  5. Step 5: Solve for x
    x = 255,479,416.74/18,503.16
  6. Step 6: Final answer
    x = 13,807.34

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