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Finding the Fourth Proportional to 14,467.86, 21,661.74 and 7,432.74

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Solution

The fourth proportional to 14,467.86, 21,661.74 and 7,432.74 is: 11,128.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,467.86 : 21,661.74 = 7,432.74 : x
  2. Step 2: Convert to fraction form
    14,467.86/21,661.74 = 7,432.74/x
  3. Step 3: Cross multiply
    14,467.86x = 21,661.74 × 7,432.74
  4. Step 4: Simplify right side
    14,467.86x = 161,006,081.37
  5. Step 5: Solve for x
    x = 161,006,081.37/14,467.86
  6. Step 6: Final answer
    x = 11,128.53

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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.