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Finding the Fourth Proportional to 59,465.40, 89,198.10 and 39,679.80

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Solution

The fourth proportional to 59,465.40, 89,198.10 and 39,679.80 is: 59,519.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,465.40 : 89,198.10 = 39,679.80 : x
  2. Step 2: Convert to fraction form
    59,465.40/89,198.10 = 39,679.80/x
  3. Step 3: Cross multiply
    59,465.40x = 89,198.10 × 39,679.80
  4. Step 4: Simplify right side
    59,465.40x = 3,539,362,768.38
  5. Step 5: Solve for x
    x = 3,539,362,768.38/59,465.40
  6. Step 6: Final answer
    x = 59,519.70

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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.