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Finding the Fourth Proportional to 16,895.72, 25,347.90 and 7,031.72

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Solution

The fourth proportional to 16,895.72, 25,347.90 and 7,031.72 is: 10,549.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,895.72 : 25,347.90 = 7,031.72 : x
  2. Step 2: Convert to fraction form
    16,895.72/25,347.90 = 7,031.72/x
  3. Step 3: Cross multiply
    16,895.72x = 25,347.90 × 7,031.72
  4. Step 4: Simplify right side
    16,895.72x = 178,239,335.39
  5. Step 5: Solve for x
    x = 178,239,335.39/16,895.72
  6. Step 6: Final answer
    x = 10,549.38

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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.