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Finding the Fourth Proportional to 60,188.56, 90,280.80 and 28,613.76

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Solution

The fourth proportional to 60,188.56, 90,280.80 and 28,613.76 is: 42,919.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,188.56 : 90,280.80 = 28,613.76 : x
  2. Step 2: Convert to fraction form
    60,188.56/90,280.80 = 28,613.76/x
  3. Step 3: Cross multiply
    60,188.56x = 90,280.80 × 28,613.76
  4. Step 4: Simplify right side
    60,188.56x = 2,583,273,143.81
  5. Step 5: Solve for x
    x = 2,583,273,143.81/60,188.56
  6. Step 6: Final answer
    x = 42,919.67

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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.