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Finding the Fourth Proportional to 14,200.60, 21,313.60 and 14,147.68

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Solution

The fourth proportional to 14,200.60, 21,313.60 and 14,147.68 is: 21,234.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,200.60 : 21,313.60 = 14,147.68 : x
  2. Step 2: Convert to fraction form
    14,200.60/21,313.60 = 14,147.68/x
  3. Step 3: Cross multiply
    14,200.60x = 21,313.60 × 14,147.68
  4. Step 4: Simplify right side
    14,200.60x = 301,537,992.45
  5. Step 5: Solve for x
    x = 301,537,992.45/14,200.60
  6. Step 6: Final answer
    x = 21,234.17

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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.