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Finding the Fourth Proportional to 25,433.80, 35,538.20 and 25,433.80

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Solution

The fourth proportional to 25,433.80, 35,538.20 and 25,433.80 is: 35,538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,433.80 : 35,538.20 = 25,433.80 : x
  2. Step 2: Convert to fraction form
    25,433.80/35,538.20 = 25,433.80/x
  3. Step 3: Cross multiply
    25,433.80x = 35,538.20 × 25,433.80
  4. Step 4: Simplify right side
    25,433.80x = 903,871,471.16
  5. Step 5: Solve for x
    x = 903,871,471.16/25,433.80
  6. Step 6: Final answer
    x = 35,538.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.