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Finding the Fourth Proportional to 2,309.92, 3,484.48 and 2,305.06

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Solution

The fourth proportional to 2,309.92, 3,484.48 and 2,305.06 is: 3,477.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.92 : 3,484.48 = 2,305.06 : x
  2. Step 2: Convert to fraction form
    2,309.92/3,484.48 = 2,305.06/x
  3. Step 3: Cross multiply
    2,309.92x = 3,484.48 × 2,305.06
  4. Step 4: Simplify right side
    2,309.92x = 8,031,935.47
  5. Step 5: Solve for x
    x = 8,031,935.47/2,309.92
  6. Step 6: Final answer
    x = 3,477.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.