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Finding the Fourth Proportional to 8,870.94, 13,306.41 and 4,975.65

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Solution

The fourth proportional to 8,870.94, 13,306.41 and 4,975.65 is: 7,463.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,870.94 : 13,306.41 = 4,975.65 : x
  2. Step 2: Convert to fraction form
    8,870.94/13,306.41 = 4,975.65/x
  3. Step 3: Cross multiply
    8,870.94x = 13,306.41 × 4,975.65
  4. Step 4: Simplify right side
    8,870.94x = 66,207,993.21
  5. Step 5: Solve for x
    x = 66,207,993.21/8,870.94
  6. Step 6: Final answer
    x = 7,463.47

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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.