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Finding the Fourth Proportional to 16,670.14, 25,017.50 and 7,905.08

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Solution

The fourth proportional to 16,670.14, 25,017.50 and 7,905.08 is: 11,863.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,670.14 : 25,017.50 = 7,905.08 : x
  2. Step 2: Convert to fraction form
    16,670.14/25,017.50 = 7,905.08/x
  3. Step 3: Cross multiply
    16,670.14x = 25,017.50 × 7,905.08
  4. Step 4: Simplify right side
    16,670.14x = 197,765,338.90
  5. Step 5: Solve for x
    x = 197,765,338.90/16,670.14
  6. Step 6: Final answer
    x = 11,863.45

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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.