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Finding the Fourth Proportional to 60,289.98, 90,433.14 and 15,916.96

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Solution

The fourth proportional to 60,289.98, 90,433.14 and 15,916.96 is: 23,874.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,289.98 : 90,433.14 = 15,916.96 : x
  2. Step 2: Convert to fraction form
    60,289.98/90,433.14 = 15,916.96/x
  3. Step 3: Cross multiply
    60,289.98x = 90,433.14 × 15,916.96
  4. Step 4: Simplify right side
    60,289.98x = 1,439,420,672.05
  5. Step 5: Solve for x
    x = 1,439,420,672.05/60,289.98
  6. Step 6: Final answer
    x = 23,874.96

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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.