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Finding the Fourth Proportional to 8,865.98, 13,298.49 and 2,709.50

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Solution

The fourth proportional to 8,865.98, 13,298.49 and 2,709.50 is: 4,064.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865.98 : 13,298.49 = 2,709.50 : x
  2. Step 2: Convert to fraction form
    8,865.98/13,298.49 = 2,709.50/x
  3. Step 3: Cross multiply
    8,865.98x = 13,298.49 × 2,709.50
  4. Step 4: Simplify right side
    8,865.98x = 36,032,258.66
  5. Step 5: Solve for x
    x = 36,032,258.66/8,865.98
  6. Step 6: Final answer
    x = 4,064.10

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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.