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Finding the Fourth Proportional to 62,245.50, 85,869.18 and 42,109.44

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Solution

The fourth proportional to 62,245.50, 85,869.18 and 42,109.44 is: 58,091.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,245.50 : 85,869.18 = 42,109.44 : x
  2. Step 2: Convert to fraction form
    62,245.50/85,869.18 = 42,109.44/x
  3. Step 3: Cross multiply
    62,245.50x = 85,869.18 × 42,109.44
  4. Step 4: Simplify right side
    62,245.50x = 3,615,903,083.06
  5. Step 5: Solve for x
    x = 3,615,903,083.06/62,245.50
  6. Step 6: Final answer
    x = 58,091.00

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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.