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Finding the Fourth Proportional to 25,373.64, 35,049.09 and 19,478.16

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Solution

The fourth proportional to 25,373.64, 35,049.09 and 19,478.16 is: 26,905.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,373.64 : 35,049.09 = 19,478.16 : x
  2. Step 2: Convert to fraction form
    25,373.64/35,049.09 = 19,478.16/x
  3. Step 3: Cross multiply
    25,373.64x = 35,049.09 × 19,478.16
  4. Step 4: Simplify right side
    25,373.64x = 682,691,782.87
  5. Step 5: Solve for x
    x = 682,691,782.87/25,373.64
  6. Step 6: Final answer
    x = 26,905.55

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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.