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Finding the Fourth Proportional to 4,913.65, 7,398.17 and 4,332.39

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Solution

The fourth proportional to 4,913.65, 7,398.17 and 4,332.39 is: 6,523.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.65 : 7,398.17 = 4,332.39 : x
  2. Step 2: Convert to fraction form
    4,913.65/7,398.17 = 4,332.39/x
  3. Step 3: Cross multiply
    4,913.65x = 7,398.17 × 4,332.39
  4. Step 4: Simplify right side
    4,913.65x = 32,051,742.84
  5. Step 5: Solve for x
    x = 32,051,742.84/4,913.65
  6. Step 6: Final answer
    x = 6,523.00

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.