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Finding the Fourth Proportional to 25,393.68, 35,047.15 and 15,835.12

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Solution

The fourth proportional to 25,393.68, 35,047.15 and 15,835.12 is: 21,854.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,393.68 : 35,047.15 = 15,835.12 : x
  2. Step 2: Convert to fraction form
    25,393.68/35,047.15 = 15,835.12/x
  3. Step 3: Cross multiply
    25,393.68x = 35,047.15 × 15,835.12
  4. Step 4: Simplify right side
    25,393.68x = 554,975,698.70
  5. Step 5: Solve for x
    x = 554,975,698.70/25,393.68
  6. Step 6: Final answer
    x = 21,854.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.