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Finding the Fourth Proportional to 26,602.40, 39,884.40 and 14,919.20

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Solution

The fourth proportional to 26,602.40, 39,884.40 and 14,919.20 is: 22,368.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,602.40 : 39,884.40 = 14,919.20 : x
  2. Step 2: Convert to fraction form
    26,602.40/39,884.40 = 14,919.20/x
  3. Step 3: Cross multiply
    26,602.40x = 39,884.40 × 14,919.20
  4. Step 4: Simplify right side
    26,602.40x = 595,043,340.48
  5. Step 5: Solve for x
    x = 595,043,340.48/26,602.40
  6. Step 6: Final answer
    x = 22,368.03

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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.