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Finding the Fourth Proportional to 8,303.98, 12,456.30 and 3,307.30

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Solution

The fourth proportional to 8,303.98, 12,456.30 and 3,307.30 is: 4,961.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,303.98 : 12,456.30 = 3,307.30 : x
  2. Step 2: Convert to fraction form
    8,303.98/12,456.30 = 3,307.30/x
  3. Step 3: Cross multiply
    8,303.98x = 12,456.30 × 3,307.30
  4. Step 4: Simplify right side
    8,303.98x = 41,196,720.99
  5. Step 5: Solve for x
    x = 41,196,720.99/8,303.98
  6. Step 6: Final answer
    x = 4,961.08

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1.5x scale

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.