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Finding the Fourth Proportional to 25,748.40, 38,622.03 and 7,028.10

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Solution

The fourth proportional to 25,748.40, 38,622.03 and 7,028.10 is: 10,541.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,748.40 : 38,622.03 = 7,028.10 : x
  2. Step 2: Convert to fraction form
    25,748.40/38,622.03 = 7,028.10/x
  3. Step 3: Cross multiply
    25,748.40x = 38,622.03 × 7,028.10
  4. Step 4: Simplify right side
    25,748.40x = 271,439,489.04
  5. Step 5: Solve for x
    x = 271,439,489.04/25,748.40
  6. Step 6: Final answer
    x = 10,541.99

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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.