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Finding the Fourth Proportional to 17,745.20, 26,657.40 and 14,829.20

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Solution

The fourth proportional to 17,745.20, 26,657.40 and 14,829.20 is: 22,276.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,745.20 : 26,657.40 = 14,829.20 : x
  2. Step 2: Convert to fraction form
    17,745.20/26,657.40 = 14,829.20/x
  3. Step 3: Cross multiply
    17,745.20x = 26,657.40 × 14,829.20
  4. Step 4: Simplify right side
    17,745.20x = 395,307,916.08
  5. Step 5: Solve for x
    x = 395,307,916.08/17,745.20
  6. Step 6: Final answer
    x = 22,276.89

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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.