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Finding the Fourth Proportional to 5,618.12, 8,396.06 and 5,294.00

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Solution

The fourth proportional to 5,618.12, 8,396.06 and 5,294.00 is: 7,911.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.12 : 8,396.06 = 5,294.00 : x
  2. Step 2: Convert to fraction form
    5,618.12/8,396.06 = 5,294.00/x
  3. Step 3: Cross multiply
    5,618.12x = 8,396.06 × 5,294.00
  4. Step 4: Simplify right side
    5,618.12x = 44,448,736.16
  5. Step 5: Solve for x
    x = 44,448,736.16/5,618.12
  6. Step 6: Final answer
    x = 7,911.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.