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Finding the Fourth Proportional to 2,707.68, 4,061.16 and 1,065.38

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Solution

The fourth proportional to 2,707.68, 4,061.16 and 1,065.38 is: 1,597.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,707.68 : 4,061.16 = 1,065.38 : x
  2. Step 2: Convert to fraction form
    2,707.68/4,061.16 = 1,065.38/x
  3. Step 3: Cross multiply
    2,707.68x = 4,061.16 × 1,065.38
  4. Step 4: Simplify right side
    2,707.68x = 4,326,678.64
  5. Step 5: Solve for x
    x = 4,326,678.64/2,707.68
  6. Step 6: Final answer
    x = 1,597.93

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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.