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Finding the Fourth Proportional to 5,661.29, 8,479.62 and 4,901.99

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Solution

The fourth proportional to 5,661.29, 8,479.62 and 4,901.99 is: 7,342.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661.29 : 8,479.62 = 4,901.99 : x
  2. Step 2: Convert to fraction form
    5,661.29/8,479.62 = 4,901.99/x
  3. Step 3: Cross multiply
    5,661.29x = 8,479.62 × 4,901.99
  4. Step 4: Simplify right side
    5,661.29x = 41,566,970.05
  5. Step 5: Solve for x
    x = 41,566,970.05/5,661.29
  6. Step 6: Final answer
    x = 7,342.31

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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.