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Finding the Fourth Proportional to 59,903.70, 89,855.55 and 18,345.30

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Solution

The fourth proportional to 59,903.70, 89,855.55 and 18,345.30 is: 27,517.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,903.70 : 89,855.55 = 18,345.30 : x
  2. Step 2: Convert to fraction form
    59,903.70/89,855.55 = 18,345.30/x
  3. Step 3: Cross multiply
    59,903.70x = 89,855.55 × 18,345.30
  4. Step 4: Simplify right side
    59,903.70x = 1,648,427,021.42
  5. Step 5: Solve for x
    x = 1,648,427,021.42/59,903.70
  6. Step 6: Final answer
    x = 27,517.95

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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.