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Finding the Fourth Proportional to 57,624, 79,483.64 and 40,652.88

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Solution

The fourth proportional to 57,624, 79,483.64 and 40,652.88 is: 56,074.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,624 : 79,483.64 = 40,652.88 : x
  2. Step 2: Convert to fraction form
    57,624/79,483.64 = 40,652.88/x
  3. Step 3: Cross multiply
    57,624x = 79,483.64 × 40,652.88
  4. Step 4: Simplify right side
    57,624x = 3,231,238,878.88
  5. Step 5: Solve for x
    x = 3,231,238,878.88/57,624
  6. Step 6: Final answer
    x = 56,074.53

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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.