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Finding the Fourth Proportional to 3,555.92, 5,302.54 and 3,309.68

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Solution

The fourth proportional to 3,555.92, 5,302.54 and 3,309.68 is: 4,935.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.92 : 5,302.54 = 3,309.68 : x
  2. Step 2: Convert to fraction form
    3,555.92/5,302.54 = 3,309.68/x
  3. Step 3: Cross multiply
    3,555.92x = 5,302.54 × 3,309.68
  4. Step 4: Simplify right side
    3,555.92x = 17,549,710.59
  5. Step 5: Solve for x
    x = 17,549,710.59/3,555.92
  6. Step 6: Final answer
    x = 4,935.35

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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.