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Finding the Fourth Proportional to 6,307.20, 8,703.30 and 3,655.44

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Solution

The fourth proportional to 6,307.20, 8,703.30 and 3,655.44 is: 5,044.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,307.20 : 8,703.30 = 3,655.44 : x
  2. Step 2: Convert to fraction form
    6,307.20/8,703.30 = 3,655.44/x
  3. Step 3: Cross multiply
    6,307.20x = 8,703.30 × 3,655.44
  4. Step 4: Simplify right side
    6,307.20x = 31,814,390.95
  5. Step 5: Solve for x
    x = 31,814,390.95/6,307.20
  6. Step 6: Final answer
    x = 5,044.14

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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.