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Finding the Fourth Proportional to 8,307.79, 12,461.65 and 3,376.27

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Solution

The fourth proportional to 8,307.79, 12,461.65 and 3,376.27 is: 5,064.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,307.79 : 12,461.65 = 3,376.27 : x
  2. Step 2: Convert to fraction form
    8,307.79/12,461.65 = 3,376.27/x
  3. Step 3: Cross multiply
    8,307.79x = 12,461.65 × 3,376.27
  4. Step 4: Simplify right side
    8,307.79x = 42,073,895.05
  5. Step 5: Solve for x
    x = 42,073,895.05/8,307.79
  6. Step 6: Final answer
    x = 5,064.39

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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.