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Finding the Fourth Proportional to 16,675.92, 25,031.48 and 7,918.16

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Solution

The fourth proportional to 16,675.92, 25,031.48 and 7,918.16 is: 11,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,675.92 : 25,031.48 = 7,918.16 : x
  2. Step 2: Convert to fraction form
    16,675.92/25,031.48 = 7,918.16/x
  3. Step 3: Cross multiply
    16,675.92x = 25,031.48 × 7,918.16
  4. Step 4: Simplify right side
    16,675.92x = 198,203,263.68
  5. Step 5: Solve for x
    x = 198,203,263.68/16,675.92
  6. Step 6: Final answer
    x = 11,885.60

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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.