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Finding the Fourth Proportional to 60,199.50, 90,300.14 and 28,612.79

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Solution

The fourth proportional to 60,199.50, 90,300.14 and 28,612.79 is: 42,919.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,199.50 : 90,300.14 = 28,612.79 : x
  2. Step 2: Convert to fraction form
    60,199.50/90,300.14 = 28,612.79/x
  3. Step 3: Cross multiply
    60,199.50x = 90,300.14 × 28,612.79
  4. Step 4: Simplify right side
    60,199.50x = 2,583,738,955.10
  5. Step 5: Solve for x
    x = 2,583,738,955.10/60,199.50
  6. Step 6: Final answer
    x = 42,919.61

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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.