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Finding the Fourth Proportional to 5,774.36, 8,616.18 and 5,421.70

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Solution

The fourth proportional to 5,774.36, 8,616.18 and 5,421.70 is: 8,089.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,774.36 : 8,616.18 = 5,421.70 : x
  2. Step 2: Convert to fraction form
    5,774.36/8,616.18 = 5,421.70/x
  3. Step 3: Cross multiply
    5,774.36x = 8,616.18 × 5,421.70
  4. Step 4: Simplify right side
    5,774.36x = 46,714,358.96
  5. Step 5: Solve for x
    x = 46,714,358.96/5,774.36
  6. Step 6: Final answer
    x = 8,089.97

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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.