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Finding the Fourth Proportional to 8,275.87, 11,426.16 and 6,384.16

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Solution

The fourth proportional to 8,275.87, 11,426.16 and 6,384.16 is: 8,814.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.87 : 11,426.16 = 6,384.16 : x
  2. Step 2: Convert to fraction form
    8,275.87/11,426.16 = 6,384.16/x
  3. Step 3: Cross multiply
    8,275.87x = 11,426.16 × 6,384.16
  4. Step 4: Simplify right side
    8,275.87x = 72,946,435.94
  5. Step 5: Solve for x
    x = 72,946,435.94/8,275.87
  6. Step 6: Final answer
    x = 8,814.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.