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Finding the Fourth Proportional to 3,339.61, 4,609 and 1,923.34

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Solution

The fourth proportional to 3,339.61, 4,609 and 1,923.34 is: 2,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.61 : 4,609 = 1,923.34 : x
  2. Step 2: Convert to fraction form
    3,339.61/4,609 = 1,923.34/x
  3. Step 3: Cross multiply
    3,339.61x = 4,609 × 1,923.34
  4. Step 4: Simplify right side
    3,339.61x = 8,864,674.06
  5. Step 5: Solve for x
    x = 8,864,674.06/3,339.61
  6. Step 6: Final answer
    x = 2,654.40

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Double scale
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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.