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Finding the Fourth Proportional to 24,450.80, 36,681.62 and 7,811.80

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Solution

The fourth proportional to 24,450.80, 36,681.62 and 7,811.80 is: 11,719.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,450.80 : 36,681.62 = 7,811.80 : x
  2. Step 2: Convert to fraction form
    24,450.80/36,681.62 = 7,811.80/x
  3. Step 3: Cross multiply
    24,450.80x = 36,681.62 × 7,811.80
  4. Step 4: Simplify right side
    24,450.80x = 286,549,479.12
  5. Step 5: Solve for x
    x = 286,549,479.12/24,450.80
  6. Step 6: Final answer
    x = 11,719.43

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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.