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Finding the Fourth Proportional to 5,179.58, 7,803.98 and 4,686.62

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Solution

The fourth proportional to 5,179.58, 7,803.98 and 4,686.62 is: 7,061.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.58 : 7,803.98 = 4,686.62 : x
  2. Step 2: Convert to fraction form
    5,179.58/7,803.98 = 4,686.62/x
  3. Step 3: Cross multiply
    5,179.58x = 7,803.98 × 4,686.62
  4. Step 4: Simplify right side
    5,179.58x = 36,574,288.75
  5. Step 5: Solve for x
    x = 36,574,288.75/5,179.58
  6. Step 6: Final answer
    x = 7,061.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.