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Finding the Fourth Proportional to 6,221.62, 8,585.94 and 3,569.32

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Solution

The fourth proportional to 6,221.62, 8,585.94 and 3,569.32 is: 4,925.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.62 : 8,585.94 = 3,569.32 : x
  2. Step 2: Convert to fraction form
    6,221.62/8,585.94 = 3,569.32/x
  3. Step 3: Cross multiply
    6,221.62x = 8,585.94 × 3,569.32
  4. Step 4: Simplify right side
    6,221.62x = 30,645,967.36
  5. Step 5: Solve for x
    x = 30,645,967.36/6,221.62
  6. Step 6: Final answer
    x = 4,925.72

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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.