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Finding the Fourth Proportional to 8,363.16, 11,548.94 and 5,384.15

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Solution

The fourth proportional to 8,363.16, 11,548.94 and 5,384.15 is: 7,435.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,363.16 : 11,548.94 = 5,384.15 : x
  2. Step 2: Convert to fraction form
    8,363.16/11,548.94 = 5,384.15/x
  3. Step 3: Cross multiply
    8,363.16x = 11,548.94 × 5,384.15
  4. Step 4: Simplify right side
    8,363.16x = 62,181,225.30
  5. Step 5: Solve for x
    x = 62,181,225.30/8,363.16
  6. Step 6: Final answer
    x = 7,435.14

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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.