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Finding the Fourth Proportional to 6,979.86, 9,624.33 and 5,088.10

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Solution

The fourth proportional to 6,979.86, 9,624.33 and 5,088.10 is: 7,015.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.86 : 9,624.33 = 5,088.10 : x
  2. Step 2: Convert to fraction form
    6,979.86/9,624.33 = 5,088.10/x
  3. Step 3: Cross multiply
    6,979.86x = 9,624.33 × 5,088.10
  4. Step 4: Simplify right side
    6,979.86x = 48,969,553.47
  5. Step 5: Solve for x
    x = 48,969,553.47/6,979.86
  6. Step 6: Final answer
    x = 7,015.84

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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.