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Finding the Fourth Proportional to 57,712.64, 79,643.52 and 32,564.48

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Solution

The fourth proportional to 57,712.64, 79,643.52 and 32,564.48 is: 44,939.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,712.64 : 79,643.52 = 32,564.48 : x
  2. Step 2: Convert to fraction form
    57,712.64/79,643.52 = 32,564.48/x
  3. Step 3: Cross multiply
    57,712.64x = 79,643.52 × 32,564.48
  4. Step 4: Simplify right side
    57,712.64x = 2,593,549,814.17
  5. Step 5: Solve for x
    x = 2,593,549,814.17/57,712.64
  6. Step 6: Final answer
    x = 44,939.03

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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.