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Finding the Fourth Proportional to 57,820.99, 79,788.56 and 35,156.84

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Solution

The fourth proportional to 57,820.99, 79,788.56 and 35,156.84 is: 48,513.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,820.99 : 79,788.56 = 35,156.84 : x
  2. Step 2: Convert to fraction form
    57,820.99/79,788.56 = 35,156.84/x
  3. Step 3: Cross multiply
    57,820.99x = 79,788.56 × 35,156.84
  4. Step 4: Simplify right side
    57,820.99x = 2,805,113,063.02
  5. Step 5: Solve for x
    x = 2,805,113,063.02/57,820.99
  6. Step 6: Final answer
    x = 48,513.75

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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.