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Finding the Fourth Proportional to 17,801.60, 26,704.80 and 6,118.40

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Solution

The fourth proportional to 17,801.60, 26,704.80 and 6,118.40 is: 9,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,801.60 : 26,704.80 = 6,118.40 : x
  2. Step 2: Convert to fraction form
    17,801.60/26,704.80 = 6,118.40/x
  3. Step 3: Cross multiply
    17,801.60x = 26,704.80 × 6,118.40
  4. Step 4: Simplify right side
    17,801.60x = 163,390,648.32
  5. Step 5: Solve for x
    x = 163,390,648.32/17,801.60
  6. Step 6: Final answer
    x = 9,178.42

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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.