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Finding the Fourth Proportional to 25,646.60, 35,378.09 and 15,034.18

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Solution

The fourth proportional to 25,646.60, 35,378.09 and 15,034.18 is: 20,738.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,646.60 : 35,378.09 = 15,034.18 : x
  2. Step 2: Convert to fraction form
    25,646.60/35,378.09 = 15,034.18/x
  3. Step 3: Cross multiply
    25,646.60x = 35,378.09 × 15,034.18
  4. Step 4: Simplify right side
    25,646.60x = 531,880,573.12
  5. Step 5: Solve for x
    x = 531,880,573.12/25,646.60
  6. Step 6: Final answer
    x = 20,738.83

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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.