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Finding the Fourth Proportional to 11,713.95, 17,570.93 and 4,318.65

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Solution

The fourth proportional to 11,713.95, 17,570.93 and 4,318.65 is: 6,477.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,713.95 : 17,570.93 = 4,318.65 : x
  2. Step 2: Convert to fraction form
    11,713.95/17,570.93 = 4,318.65/x
  3. Step 3: Cross multiply
    11,713.95x = 17,570.93 × 4,318.65
  4. Step 4: Simplify right side
    11,713.95x = 75,882,675.25
  5. Step 5: Solve for x
    x = 75,882,675.25/11,713.95
  6. Step 6: Final answer
    x = 6,477.98

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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.