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Finding the Fourth Proportional to 53,409.15, 80,123.37 and 17,867.10

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Solution

The fourth proportional to 53,409.15, 80,123.37 and 17,867.10 is: 26,803.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,409.15 : 80,123.37 = 17,867.10 : x
  2. Step 2: Convert to fraction form
    53,409.15/80,123.37 = 17,867.10/x
  3. Step 3: Cross multiply
    53,409.15x = 80,123.37 × 17,867.10
  4. Step 4: Simplify right side
    53,409.15x = 1,431,572,264.13
  5. Step 5: Solve for x
    x = 1,431,572,264.13/53,409.15
  6. Step 6: Final answer
    x = 26,803.88

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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.