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Finding the Fourth Proportional to 57,915.99, 79,936.53 and 35,262.45

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Solution

The fourth proportional to 57,915.99, 79,936.53 and 35,262.45 is: 48,669.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,915.99 : 79,936.53 = 35,262.45 : x
  2. Step 2: Convert to fraction form
    57,915.99/79,936.53 = 35,262.45/x
  3. Step 3: Cross multiply
    57,915.99x = 79,936.53 × 35,262.45
  4. Step 4: Simplify right side
    57,915.99x = 2,818,757,892.30
  5. Step 5: Solve for x
    x = 2,818,757,892.30/57,915.99
  6. Step 6: Final answer
    x = 48,669.77

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1.5x scale

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.