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Finding the Fourth Proportional to 4,608.68, 6,913.01 and 1,145.93

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Solution

The fourth proportional to 4,608.68, 6,913.01 and 1,145.93 is: 1,718.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,608.68 : 6,913.01 = 1,145.93 : x
  2. Step 2: Convert to fraction form
    4,608.68/6,913.01 = 1,145.93/x
  3. Step 3: Cross multiply
    4,608.68x = 6,913.01 × 1,145.93
  4. Step 4: Simplify right side
    4,608.68x = 7,921,785.25
  5. Step 5: Solve for x
    x = 7,921,785.25/4,608.68
  6. Step 6: Final answer
    x = 1,718.89

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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.