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Finding the Fourth Proportional to 57,805.74, 79,775.82 and 32,656.86

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Solution

The fourth proportional to 57,805.74, 79,775.82 and 32,656.86 is: 45,068.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,805.74 : 79,775.82 = 32,656.86 : x
  2. Step 2: Convert to fraction form
    57,805.74/79,775.82 = 32,656.86/x
  3. Step 3: Cross multiply
    57,805.74x = 79,775.82 × 32,656.86
  4. Step 4: Simplify right side
    57,805.74x = 2,605,227,785.13
  5. Step 5: Solve for x
    x = 2,605,227,785.13/57,805.74
  6. Step 6: Final answer
    x = 45,068.67

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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.