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Finding the Fourth Proportional to 92,912.10, 128,214.27 and 52,624.86

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Solution

The fourth proportional to 92,912.10, 128,214.27 and 52,624.86 is: 72,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,912.10 : 128,214.27 = 52,624.86 : x
  2. Step 2: Convert to fraction form
    92,912.10/128,214.27 = 52,624.86/x
  3. Step 3: Cross multiply
    92,912.10x = 128,214.27 × 52,624.86
  4. Step 4: Simplify right side
    92,912.10x = 6,747,258,008.75
  5. Step 5: Solve for x
    x = 6,747,258,008.75/92,912.10
  6. Step 6: Final answer
    x = 72,619.80

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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.