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Finding the Fourth Proportional to 53,399.98, 80,085.14 and 15,951.18

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Solution

The fourth proportional to 53,399.98, 80,085.14 and 15,951.18 is: 23,922.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,399.98 : 80,085.14 = 15,951.18 : x
  2. Step 2: Convert to fraction form
    53,399.98/80,085.14 = 15,951.18/x
  3. Step 3: Cross multiply
    53,399.98x = 80,085.14 × 15,951.18
  4. Step 4: Simplify right side
    53,399.98x = 1,277,452,403.71
  5. Step 5: Solve for x
    x = 1,277,452,403.71/53,399.98
  6. Step 6: Final answer
    x = 23,922.34

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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.