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Finding the Fourth Proportional to 45,865.42, 68,793.51 and 12,588.84

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Solution

The fourth proportional to 45,865.42, 68,793.51 and 12,588.84 is: 18,881.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,865.42 : 68,793.51 = 12,588.84 : x
  2. Step 2: Convert to fraction form
    45,865.42/68,793.51 = 12,588.84/x
  3. Step 3: Cross multiply
    45,865.42x = 68,793.51 × 12,588.84
  4. Step 4: Simplify right side
    45,865.42x = 866,030,490.43
  5. Step 5: Solve for x
    x = 866,030,490.43/45,865.42
  6. Step 6: Final answer
    x = 18,881.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.