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Finding the Fourth Proportional to 16,690.74, 25,019.64 and 9,298.68

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Solution

The fourth proportional to 16,690.74, 25,019.64 and 9,298.68 is: 13,938.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,690.74 : 25,019.64 = 9,298.68 : x
  2. Step 2: Convert to fraction form
    16,690.74/25,019.64 = 9,298.68/x
  3. Step 3: Cross multiply
    16,690.74x = 25,019.64 × 9,298.68
  4. Step 4: Simplify right side
    16,690.74x = 232,649,626.08
  5. Step 5: Solve for x
    x = 232,649,626.08/16,690.74
  6. Step 6: Final answer
    x = 13,938.84

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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.