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Finding the Fourth Proportional to 25,963.80, 38,945.70 and 15,595.80

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Solution

The fourth proportional to 25,963.80, 38,945.70 and 15,595.80 is: 23,393.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,963.80 : 38,945.70 = 15,595.80 : x
  2. Step 2: Convert to fraction form
    25,963.80/38,945.70 = 15,595.80/x
  3. Step 3: Cross multiply
    25,963.80x = 38,945.70 × 15,595.80
  4. Step 4: Simplify right side
    25,963.80x = 607,389,348.06
  5. Step 5: Solve for x
    x = 607,389,348.06/25,963.80
  6. Step 6: Final answer
    x = 23,393.70

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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.