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Finding the Fourth Proportional to 6,215.65, 8,577.12 and 3,946.83

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Solution

The fourth proportional to 6,215.65, 8,577.12 and 3,946.83 is: 5,446.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.65 : 8,577.12 = 3,946.83 : x
  2. Step 2: Convert to fraction form
    6,215.65/8,577.12 = 3,946.83/x
  3. Step 3: Cross multiply
    6,215.65x = 8,577.12 × 3,946.83
  4. Step 4: Simplify right side
    6,215.65x = 33,852,417.17
  5. Step 5: Solve for x
    x = 33,852,417.17/6,215.65
  6. Step 6: Final answer
    x = 5,446.32

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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.