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Finding the Fourth Proportional to 18,434.88, 25,439.04 and 10,051.20

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Solution

The fourth proportional to 18,434.88, 25,439.04 and 10,051.20 is: 13,870.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,434.88 : 25,439.04 = 10,051.20 : x
  2. Step 2: Convert to fraction form
    18,434.88/25,439.04 = 10,051.20/x
  3. Step 3: Cross multiply
    18,434.88x = 25,439.04 × 10,051.20
  4. Step 4: Simplify right side
    18,434.88x = 255,692,878.85
  5. Step 5: Solve for x
    x = 255,692,878.85/18,434.88
  6. Step 6: Final answer
    x = 13,870.06

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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.