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Finding the Fourth Proportional to 92,827.70, 128,098.79 and 50,385.32

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Solution

The fourth proportional to 92,827.70, 128,098.79 and 50,385.32 is: 69,529.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,827.70 : 128,098.79 = 50,385.32 : x
  2. Step 2: Convert to fraction form
    92,827.70/128,098.79 = 50,385.32/x
  3. Step 3: Cross multiply
    92,827.70x = 128,098.79 × 50,385.32
  4. Step 4: Simplify right side
    92,827.70x = 6,454,298,525.76
  5. Step 5: Solve for x
    x = 6,454,298,525.76/92,827.70
  6. Step 6: Final answer
    x = 69,529.88

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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.