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Finding the Fourth Proportional to 9,813.16, 14,723.66 and 4,619.40

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Solution

The fourth proportional to 9,813.16, 14,723.66 and 4,619.40 is: 6,930.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,813.16 : 14,723.66 = 4,619.40 : x
  2. Step 2: Convert to fraction form
    9,813.16/14,723.66 = 4,619.40/x
  3. Step 3: Cross multiply
    9,813.16x = 14,723.66 × 4,619.40
  4. Step 4: Simplify right side
    9,813.16x = 68,014,475.00
  5. Step 5: Solve for x
    x = 68,014,475.00/9,813.16
  6. Step 6: Final answer
    x = 6,930.95

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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.