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Finding the Fourth Proportional to 5,864.55, 8,809.07 and 4,986.91

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Solution

The fourth proportional to 5,864.55, 8,809.07 and 4,986.91 is: 7,490.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,864.55 : 8,809.07 = 4,986.91 : x
  2. Step 2: Convert to fraction form
    5,864.55/8,809.07 = 4,986.91/x
  3. Step 3: Cross multiply
    5,864.55x = 8,809.07 × 4,986.91
  4. Step 4: Simplify right side
    5,864.55x = 43,930,014.34
  5. Step 5: Solve for x
    x = 43,930,014.34/5,864.55
  6. Step 6: Final answer
    x = 7,490.78

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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.