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Finding the Fourth Proportional to 8,588.70, 12,868.65 and 4,196.70

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Solution

The fourth proportional to 8,588.70, 12,868.65 and 4,196.70 is: 6,288.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,588.70 : 12,868.65 = 4,196.70 : x
  2. Step 2: Convert to fraction form
    8,588.70/12,868.65 = 4,196.70/x
  3. Step 3: Cross multiply
    8,588.70x = 12,868.65 × 4,196.70
  4. Step 4: Simplify right side
    8,588.70x = 54,005,863.46
  5. Step 5: Solve for x
    x = 54,005,863.46/8,588.70
  6. Step 6: Final answer
    x = 6,288.01

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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.