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Finding the Fourth Proportional to 57,263.85, 79,000.79 and 38,407.05

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Solution

The fourth proportional to 57,263.85, 79,000.79 and 38,407.05 is: 52,986.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,263.85 : 79,000.79 = 38,407.05 : x
  2. Step 2: Convert to fraction form
    57,263.85/79,000.79 = 38,407.05/x
  3. Step 3: Cross multiply
    57,263.85x = 79,000.79 × 38,407.05
  4. Step 4: Simplify right side
    57,263.85x = 3,034,187,099.53
  5. Step 5: Solve for x
    x = 3,034,187,099.53/57,263.85
  6. Step 6: Final answer
    x = 52,986.08

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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.