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Finding the Fourth Proportional to 6,696.04, 9,240.65 and 3,712

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Solution

The fourth proportional to 6,696.04, 9,240.65 and 3,712 is: 5,122.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,696.04 : 9,240.65 = 3,712 : x
  2. Step 2: Convert to fraction form
    6,696.04/9,240.65 = 3,712/x
  3. Step 3: Cross multiply
    6,696.04x = 9,240.65 × 3,712
  4. Step 4: Simplify right side
    6,696.04x = 34,301,292.80
  5. Step 5: Solve for x
    x = 34,301,292.80/6,696.04
  6. Step 6: Final answer
    x = 5,122.62

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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.