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Finding the Fourth Proportional to 18,434.80, 25,440.02 and 10,051.30

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Solution

The fourth proportional to 18,434.80, 25,440.02 and 10,051.30 is: 13,870.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,434.80 : 25,440.02 = 10,051.30 : x
  2. Step 2: Convert to fraction form
    18,434.80/25,440.02 = 10,051.30/x
  3. Step 3: Cross multiply
    18,434.80x = 25,440.02 × 10,051.30
  4. Step 4: Simplify right side
    18,434.80x = 255,705,273.03
  5. Step 5: Solve for x
    x = 255,705,273.03/18,434.80
  6. Step 6: Final answer
    x = 13,870.79

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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.