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Finding the Fourth Proportional to 14,000.67, 19,314.68 and 8,031.15

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Solution

The fourth proportional to 14,000.67, 19,314.68 and 8,031.15 is: 11,079.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.67 : 19,314.68 = 8,031.15 : x
  2. Step 2: Convert to fraction form
    14,000.67/19,314.68 = 8,031.15/x
  3. Step 3: Cross multiply
    14,000.67x = 19,314.68 × 8,031.15
  4. Step 4: Simplify right side
    14,000.67x = 155,119,052.13
  5. Step 5: Solve for x
    x = 155,119,052.13/14,000.67
  6. Step 6: Final answer
    x = 11,079.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.