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Finding the Fourth Proportional to 8,335.68, 12,492.70 and 6,239.22

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Solution

The fourth proportional to 8,335.68, 12,492.70 and 6,239.22 is: 9,350.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,335.68 : 12,492.70 = 6,239.22 : x
  2. Step 2: Convert to fraction form
    8,335.68/12,492.70 = 6,239.22/x
  3. Step 3: Cross multiply
    8,335.68x = 12,492.70 × 6,239.22
  4. Step 4: Simplify right side
    8,335.68x = 77,944,703.69
  5. Step 5: Solve for x
    x = 77,944,703.69/8,335.68
  6. Step 6: Final answer
    x = 9,350.73

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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.