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Finding the Fourth Proportional to 57,640.74, 79,547.88 and 32,491.86

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Solution

The fourth proportional to 57,640.74, 79,547.88 and 32,491.86 is: 44,840.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,640.74 : 79,547.88 = 32,491.86 : x
  2. Step 2: Convert to fraction form
    57,640.74/79,547.88 = 32,491.86/x
  3. Step 3: Cross multiply
    57,640.74x = 79,547.88 × 32,491.86
  4. Step 4: Simplify right side
    57,640.74x = 2,584,658,580.26
  5. Step 5: Solve for x
    x = 2,584,658,580.26/57,640.74
  6. Step 6: Final answer
    x = 44,840.83

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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.