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Finding the Fourth Proportional to 43,135.70, 59,559.70 and 42,446.80

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Solution

The fourth proportional to 43,135.70, 59,559.70 and 42,446.80 is: 58,608.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,135.70 : 59,559.70 = 42,446.80 : x
  2. Step 2: Convert to fraction form
    43,135.70/59,559.70 = 42,446.80/x
  3. Step 3: Cross multiply
    43,135.70x = 59,559.70 × 42,446.80
  4. Step 4: Simplify right side
    43,135.70x = 2,528,118,673.96
  5. Step 5: Solve for x
    x = 2,528,118,673.96/43,135.70
  6. Step 6: Final answer
    x = 58,608.50

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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.