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Finding the Fourth Proportional to 92,951.34, 128,272.52 and 52,672.76

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Solution

The fourth proportional to 92,951.34, 128,272.52 and 52,672.76 is: 72,688.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,951.34 : 128,272.52 = 52,672.76 : x
  2. Step 2: Convert to fraction form
    92,951.34/128,272.52 = 52,672.76/x
  3. Step 3: Cross multiply
    92,951.34x = 128,272.52 × 52,672.76
  4. Step 4: Simplify right side
    92,951.34x = 6,756,467,660.56
  5. Step 5: Solve for x
    x = 6,756,467,660.56/92,951.34
  6. Step 6: Final answer
    x = 72,688.22

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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.