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Finding the Fourth Proportional to 9,863.96, 14,795.64 and 3,290.21

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Solution

The fourth proportional to 9,863.96, 14,795.64 and 3,290.21 is: 4,935.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,863.96 : 14,795.64 = 3,290.21 : x
  2. Step 2: Convert to fraction form
    9,863.96/14,795.64 = 3,290.21/x
  3. Step 3: Cross multiply
    9,863.96x = 14,795.64 × 3,290.21
  4. Step 4: Simplify right side
    9,863.96x = 48,680,688.71
  5. Step 5: Solve for x
    x = 48,680,688.71/9,863.96
  6. Step 6: Final answer
    x = 4,935.21

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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.