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Finding the Fourth Proportional to 58,300.81, 87,453.95 and 18,861.01

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Solution

The fourth proportional to 58,300.81, 87,453.95 and 18,861.01 is: 28,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,300.81 : 87,453.95 = 18,861.01 : x
  2. Step 2: Convert to fraction form
    58,300.81/87,453.95 = 18,861.01/x
  3. Step 3: Cross multiply
    58,300.81x = 87,453.95 × 18,861.01
  4. Step 4: Simplify right side
    58,300.81x = 1,649,469,512.55
  5. Step 5: Solve for x
    x = 1,649,469,512.55/58,300.81
  6. Step 6: Final answer
    x = 28,292.40

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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.