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Finding the Fourth Proportional to 6,649.84, 9,959.37 and 3,312.01

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Solution

The fourth proportional to 6,649.84, 9,959.37 and 3,312.01 is: 4,960.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,649.84 : 9,959.37 = 3,312.01 : x
  2. Step 2: Convert to fraction form
    6,649.84/9,959.37 = 3,312.01/x
  3. Step 3: Cross multiply
    6,649.84x = 9,959.37 × 3,312.01
  4. Step 4: Simplify right side
    6,649.84x = 32,985,533.03
  5. Step 5: Solve for x
    x = 32,985,533.03/6,649.84
  6. Step 6: Final answer
    x = 4,960.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.