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Finding the Fourth Proportional to 89,770.40, 134,655.60 and 26,592.80

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Solution

The fourth proportional to 89,770.40, 134,655.60 and 26,592.80 is: 39,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,770.40 : 134,655.60 = 26,592.80 : x
  2. Step 2: Convert to fraction form
    89,770.40/134,655.60 = 26,592.80/x
  3. Step 3: Cross multiply
    89,770.40x = 134,655.60 × 26,592.80
  4. Step 4: Simplify right side
    89,770.40x = 3,580,869,439.68
  5. Step 5: Solve for x
    x = 3,580,869,439.68/89,770.40
  6. Step 6: Final answer
    x = 39,889.20

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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.