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Finding the Fourth Proportional to 53,812.80, 80,719.28 and 25,726.25

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Solution

The fourth proportional to 53,812.80, 80,719.28 and 25,726.25 is: 38,589.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,812.80 : 80,719.28 = 25,726.25 : x
  2. Step 2: Convert to fraction form
    53,812.80/80,719.28 = 25,726.25/x
  3. Step 3: Cross multiply
    53,812.80x = 80,719.28 × 25,726.25
  4. Step 4: Simplify right side
    53,812.80x = 2,076,604,377.10
  5. Step 5: Solve for x
    x = 2,076,604,377.10/53,812.80
  6. Step 6: Final answer
    x = 38,589.41

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1.5x scale

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.