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Finding the Fourth Proportional to 4,898.91, 7,353.63 and 1,979.13

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Solution

The fourth proportional to 4,898.91, 7,353.63 and 1,979.13 is: 2,970.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,898.91 : 7,353.63 = 1,979.13 : x
  2. Step 2: Convert to fraction form
    4,898.91/7,353.63 = 1,979.13/x
  3. Step 3: Cross multiply
    4,898.91x = 7,353.63 × 1,979.13
  4. Step 4: Simplify right side
    4,898.91x = 14,553,789.74
  5. Step 5: Solve for x
    x = 14,553,789.74/4,898.91
  6. Step 6: Final answer
    x = 2,970.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.