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Finding the Fourth Proportional to 57,471.68, 79,310.40 and 32,320.64

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Solution

The fourth proportional to 57,471.68, 79,310.40 and 32,320.64 is: 44,602.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,471.68 : 79,310.40 = 32,320.64 : x
  2. Step 2: Convert to fraction form
    57,471.68/79,310.40 = 32,320.64/x
  3. Step 3: Cross multiply
    57,471.68x = 79,310.40 × 32,320.64
  4. Step 4: Simplify right side
    57,471.68x = 2,563,362,886.66
  5. Step 5: Solve for x
    x = 2,563,362,886.66/57,471.68
  6. Step 6: Final answer
    x = 44,602.19

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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.