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Finding the Fourth Proportional to 5,307.63, 7,324.68 and 2,917.68

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Solution

The fourth proportional to 5,307.63, 7,324.68 and 2,917.68 is: 4,026.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307.63 : 7,324.68 = 2,917.68 : x
  2. Step 2: Convert to fraction form
    5,307.63/7,324.68 = 2,917.68/x
  3. Step 3: Cross multiply
    5,307.63x = 7,324.68 × 2,917.68
  4. Step 4: Simplify right side
    5,307.63x = 21,371,072.34
  5. Step 5: Solve for x
    x = 21,371,072.34/5,307.63
  6. Step 6: Final answer
    x = 4,026.48

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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.