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Finding the Fourth Proportional to 8,886.65, 13,328.89 and 6,914.23

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Solution

The fourth proportional to 8,886.65, 13,328.89 and 6,914.23 is: 10,370.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.65 : 13,328.89 = 6,914.23 : x
  2. Step 2: Convert to fraction form
    8,886.65/13,328.89 = 6,914.23/x
  3. Step 3: Cross multiply
    8,886.65x = 13,328.89 × 6,914.23
  4. Step 4: Simplify right side
    8,886.65x = 92,158,960.50
  5. Step 5: Solve for x
    x = 92,158,960.50/8,886.65
  6. Step 6: Final answer
    x = 10,370.50

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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.