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Finding the Fourth Proportional to 9,863.70, 14,788.26 and 4,663.50

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Solution

The fourth proportional to 9,863.70, 14,788.26 and 4,663.50 is: 6,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,863.70 : 14,788.26 = 4,663.50 : x
  2. Step 2: Convert to fraction form
    9,863.70/14,788.26 = 4,663.50/x
  3. Step 3: Cross multiply
    9,863.70x = 14,788.26 × 4,663.50
  4. Step 4: Simplify right side
    9,863.70x = 68,965,050.51
  5. Step 5: Solve for x
    x = 68,965,050.51/9,863.70
  6. Step 6: Final answer
    x = 6,991.80

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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.