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Finding the Fourth Proportional to 14,572.86, 21,879.77 and 7,462.20

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Solution

The fourth proportional to 14,572.86, 21,879.77 and 7,462.20 is: 11,203.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,572.86 : 21,879.77 = 7,462.20 : x
  2. Step 2: Convert to fraction form
    14,572.86/21,879.77 = 7,462.20/x
  3. Step 3: Cross multiply
    14,572.86x = 21,879.77 × 7,462.20
  4. Step 4: Simplify right side
    14,572.86x = 163,271,244.87
  5. Step 5: Solve for x
    x = 163,271,244.87/14,572.86
  6. Step 6: Final answer
    x = 11,203.79

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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.