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Finding the Fourth Proportional to 3,307.64, 4,981.25 and 3,012.39

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Solution

The fourth proportional to 3,307.64, 4,981.25 and 3,012.39 is: 4,536.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,307.64 : 4,981.25 = 3,012.39 : x
  2. Step 2: Convert to fraction form
    3,307.64/4,981.25 = 3,012.39/x
  3. Step 3: Cross multiply
    3,307.64x = 4,981.25 × 3,012.39
  4. Step 4: Simplify right side
    3,307.64x = 15,005,475.22
  5. Step 5: Solve for x
    x = 15,005,475.22/3,307.64
  6. Step 6: Final answer
    x = 4,536.62

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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.