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Finding the Fourth Proportional to 57,803.83, 86,711.51 and 15,684.59

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Solution

The fourth proportional to 57,803.83, 86,711.51 and 15,684.59 is: 23,528.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,803.83 : 86,711.51 = 15,684.59 : x
  2. Step 2: Convert to fraction form
    57,803.83/86,711.51 = 15,684.59/x
  3. Step 3: Cross multiply
    57,803.83x = 86,711.51 × 15,684.59
  4. Step 4: Simplify right side
    57,803.83x = 1,360,034,250.87
  5. Step 5: Solve for x
    x = 1,360,034,250.87/57,803.83
  6. Step 6: Final answer
    x = 23,528.45

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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.