Home / 16,935.60-25,403.40-7,074.80

Finding the Fourth Proportional to 16,935.60, 25,403.40 and 7,074.80

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Solution

The fourth proportional to 16,935.60, 25,403.40 and 7,074.80 is: 10,612.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,935.60 : 25,403.40 = 7,074.80 : x
  2. Step 2: Convert to fraction form
    16,935.60/25,403.40 = 7,074.80/x
  3. Step 3: Cross multiply
    16,935.60x = 25,403.40 × 7,074.80
  4. Step 4: Simplify right side
    16,935.60x = 179,723,974.32
  5. Step 5: Solve for x
    x = 179,723,974.32/16,935.60
  6. Step 6: Final answer
    x = 10,612.20

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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.