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Finding the Fourth Proportional to 25,043, 34,555.92 and 14,969.28

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Solution

The fourth proportional to 25,043, 34,555.92 and 14,969.28 is: 20,655.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,043 : 34,555.92 = 14,969.28 : x
  2. Step 2: Convert to fraction form
    25,043/34,555.92 = 14,969.28/x
  3. Step 3: Cross multiply
    25,043x = 34,555.92 × 14,969.28
  4. Step 4: Simplify right side
    25,043x = 517,277,242.14
  5. Step 5: Solve for x
    x = 517,277,242.14/25,043
  6. Step 6: Final answer
    x = 20,655.56

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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.