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Finding the Fourth Proportional to 57,049.76, 78,702.48 and 36,913.21

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Solution

The fourth proportional to 57,049.76, 78,702.48 and 36,913.21 is: 50,923.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,049.76 : 78,702.48 = 36,913.21 : x
  2. Step 2: Convert to fraction form
    57,049.76/78,702.48 = 36,913.21/x
  3. Step 3: Cross multiply
    57,049.76x = 78,702.48 × 36,913.21
  4. Step 4: Simplify right side
    57,049.76x = 2,905,160,975.00
  5. Step 5: Solve for x
    x = 2,905,160,975.00/57,049.76
  6. Step 6: Final answer
    x = 50,923.28

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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.