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Finding the Fourth Proportional to 17,261.76, 25,887 and 5,572.20

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Solution

The fourth proportional to 17,261.76, 25,887 and 5,572.20 is: 8,356.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,261.76 : 25,887 = 5,572.20 : x
  2. Step 2: Convert to fraction form
    17,261.76/25,887 = 5,572.20/x
  3. Step 3: Cross multiply
    17,261.76x = 25,887 × 5,572.20
  4. Step 4: Simplify right side
    17,261.76x = 144,247,541.40
  5. Step 5: Solve for x
    x = 144,247,541.40/17,261.76
  6. Step 6: Final answer
    x = 8,356.48

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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.