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Finding the Fourth Proportional to 60,289.25, 90,432.50 and 15,919.11

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Solution

The fourth proportional to 60,289.25, 90,432.50 and 15,919.11 is: 23,878.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,289.25 : 90,432.50 = 15,919.11 : x
  2. Step 2: Convert to fraction form
    60,289.25/90,432.50 = 15,919.11/x
  3. Step 3: Cross multiply
    60,289.25x = 90,432.50 × 15,919.11
  4. Step 4: Simplify right side
    60,289.25x = 1,439,604,835.48
  5. Step 5: Solve for x
    x = 1,439,604,835.48/60,289.25
  6. Step 6: Final answer
    x = 23,878.30

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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.