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Finding the Fourth Proportional to 10,503.13, 15,755.00 and 3,928.06

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Solution

The fourth proportional to 10,503.13, 15,755.00 and 3,928.06 is: 5,892.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,503.13 : 15,755.00 = 3,928.06 : x
  2. Step 2: Convert to fraction form
    10,503.13/15,755.00 = 3,928.06/x
  3. Step 3: Cross multiply
    10,503.13x = 15,755.00 × 3,928.06
  4. Step 4: Simplify right side
    10,503.13x = 61,886,526.27
  5. Step 5: Solve for x
    x = 61,886,526.27/10,503.13
  6. Step 6: Final answer
    x = 5,892.20

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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.