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Finding the Fourth Proportional to 9,839.65, 14,755.12 and 2,818.07

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Solution

The fourth proportional to 9,839.65, 14,755.12 and 2,818.07 is: 4,225.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,839.65 : 14,755.12 = 2,818.07 : x
  2. Step 2: Convert to fraction form
    9,839.65/14,755.12 = 2,818.07/x
  3. Step 3: Cross multiply
    9,839.65x = 14,755.12 × 2,818.07
  4. Step 4: Simplify right side
    9,839.65x = 41,580,887.24
  5. Step 5: Solve for x
    x = 41,580,887.24/9,839.65
  6. Step 6: Final answer
    x = 4,225.85

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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.