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Finding the Fourth Proportional to 8,574.88, 11,830.71 and 5,589.63

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Solution

The fourth proportional to 8,574.88, 11,830.71 and 5,589.63 is: 7,711.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,574.88 : 11,830.71 = 5,589.63 : x
  2. Step 2: Convert to fraction form
    8,574.88/11,830.71 = 5,589.63/x
  3. Step 3: Cross multiply
    8,574.88x = 11,830.71 × 5,589.63
  4. Step 4: Simplify right side
    8,574.88x = 66,129,291.54
  5. Step 5: Solve for x
    x = 66,129,291.54/8,574.88
  6. Step 6: Final answer
    x = 7,711.98

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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.