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Finding the Fourth Proportional to 5,307.39, 7,324.38 and 2,917.61

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Solution

The fourth proportional to 5,307.39, 7,324.38 and 2,917.61 is: 4,026.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307.39 : 7,324.38 = 2,917.61 : x
  2. Step 2: Convert to fraction form
    5,307.39/7,324.38 = 2,917.61/x
  3. Step 3: Cross multiply
    5,307.39x = 7,324.38 × 2,917.61
  4. Step 4: Simplify right side
    5,307.39x = 21,369,647.71
  5. Step 5: Solve for x
    x = 21,369,647.71/5,307.39
  6. Step 6: Final answer
    x = 4,026.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.