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Finding the Fourth Proportional to 57,307.60, 79,073.72 and 33,428.30

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Solution

The fourth proportional to 57,307.60, 79,073.72 and 33,428.30 is: 46,124.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,307.60 : 79,073.72 = 33,428.30 : x
  2. Step 2: Convert to fraction form
    57,307.60/79,073.72 = 33,428.30/x
  3. Step 3: Cross multiply
    57,307.60x = 79,073.72 × 33,428.30
  4. Step 4: Simplify right side
    57,307.60x = 2,643,299,597.12
  5. Step 5: Solve for x
    x = 2,643,299,597.12/57,307.60
  6. Step 6: Final answer
    x = 46,124.76

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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.