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Finding the Fourth Proportional to 16,668.12, 25,014.48 and 7,903.08

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Solution

The fourth proportional to 16,668.12, 25,014.48 and 7,903.08 is: 11,860.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,668.12 : 25,014.48 = 7,903.08 : x
  2. Step 2: Convert to fraction form
    16,668.12/25,014.48 = 7,903.08/x
  3. Step 3: Cross multiply
    16,668.12x = 25,014.48 × 7,903.08
  4. Step 4: Simplify right side
    16,668.12x = 197,691,436.60
  5. Step 5: Solve for x
    x = 197,691,436.60/16,668.12
  6. Step 6: Final answer
    x = 11,860.45

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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.