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Finding the Fourth Proportional to 13,460.77, 20,213.03 and 13,358.71

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Solution

The fourth proportional to 13,460.77, 20,213.03 and 13,358.71 is: 20,059.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,460.77 : 20,213.03 = 13,358.71 : x
  2. Step 2: Convert to fraction form
    13,460.77/20,213.03 = 13,358.71/x
  3. Step 3: Cross multiply
    13,460.77x = 20,213.03 × 13,358.71
  4. Step 4: Simplify right side
    13,460.77x = 270,020,005.99
  5. Step 5: Solve for x
    x = 270,020,005.99/13,460.77
  6. Step 6: Final answer
    x = 20,059.77

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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.