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Finding the Fourth Proportional to 21,668.73, 32,499.77 and 6,875.73

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Solution

The fourth proportional to 21,668.73, 32,499.77 and 6,875.73 is: 10,312.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668.73 : 32,499.77 = 6,875.73 : x
  2. Step 2: Convert to fraction form
    21,668.73/32,499.77 = 6,875.73/x
  3. Step 3: Cross multiply
    21,668.73x = 32,499.77 × 6,875.73
  4. Step 4: Simplify right side
    21,668.73x = 223,459,609.20
  5. Step 5: Solve for x
    x = 223,459,609.20/21,668.73
  6. Step 6: Final answer
    x = 10,312.54

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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.