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Finding the Fourth Proportional to 8,596.70, 11,863.47 and 4,870.70

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Solution

The fourth proportional to 8,596.70, 11,863.47 and 4,870.70 is: 6,721.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,596.70 : 11,863.47 = 4,870.70 : x
  2. Step 2: Convert to fraction form
    8,596.70/11,863.47 = 4,870.70/x
  3. Step 3: Cross multiply
    8,596.70x = 11,863.47 × 4,870.70
  4. Step 4: Simplify right side
    8,596.70x = 57,783,403.33
  5. Step 5: Solve for x
    x = 57,783,403.33/8,596.70
  6. Step 6: Final answer
    x = 6,721.58

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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.