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Finding the Fourth Proportional to 57,684.69, 86,527.76 and 18,245.25

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Solution

The fourth proportional to 57,684.69, 86,527.76 and 18,245.25 is: 27,368.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,684.69 : 86,527.76 = 18,245.25 : x
  2. Step 2: Convert to fraction form
    57,684.69/86,527.76 = 18,245.25/x
  3. Step 3: Cross multiply
    57,684.69x = 86,527.76 × 18,245.25
  4. Step 4: Simplify right side
    57,684.69x = 1,578,720,521.91
  5. Step 5: Solve for x
    x = 1,578,720,521.91/57,684.69
  6. Step 6: Final answer
    x = 27,368.10

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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.