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Finding the Fourth Proportional to 57,295.83, 79,069.09 and 31,803.84

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Solution

The fourth proportional to 57,295.83, 79,069.09 and 31,803.84 is: 43,889.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,295.83 : 79,069.09 = 31,803.84 : x
  2. Step 2: Convert to fraction form
    57,295.83/79,069.09 = 31,803.84/x
  3. Step 3: Cross multiply
    57,295.83x = 79,069.09 × 31,803.84
  4. Step 4: Simplify right side
    57,295.83x = 2,514,700,687.31
  5. Step 5: Solve for x
    x = 2,514,700,687.31/57,295.83
  6. Step 6: Final answer
    x = 43,889.77

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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.