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Finding the Fourth Proportional to 9,699.79, 14,549.39 and 2,680.22

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Solution

The fourth proportional to 9,699.79, 14,549.39 and 2,680.22 is: 4,020.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,699.79 : 14,549.39 = 2,680.22 : x
  2. Step 2: Convert to fraction form
    9,699.79/14,549.39 = 2,680.22/x
  3. Step 3: Cross multiply
    9,699.79x = 14,549.39 × 2,680.22
  4. Step 4: Simplify right side
    9,699.79x = 38,995,566.07
  5. Step 5: Solve for x
    x = 38,995,566.07/9,699.79
  6. Step 6: Final answer
    x = 4,020.25

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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.