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Finding the Fourth Proportional to 21,714.76, 32,572.48 and 8,567.02

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Solution

The fourth proportional to 21,714.76, 32,572.48 and 8,567.02 is: 12,850.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,714.76 : 32,572.48 = 8,567.02 : x
  2. Step 2: Convert to fraction form
    21,714.76/32,572.48 = 8,567.02/x
  3. Step 3: Cross multiply
    21,714.76x = 32,572.48 × 8,567.02
  4. Step 4: Simplify right side
    21,714.76x = 279,048,939.75
  5. Step 5: Solve for x
    x = 279,048,939.75/21,714.76
  6. Step 6: Final answer
    x = 12,850.66

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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.