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Finding the Fourth Proportional to 21,602.09, 32,391.41 and 9,741.99

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Solution

The fourth proportional to 21,602.09, 32,391.41 and 9,741.99 is: 14,607.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,602.09 : 32,391.41 = 9,741.99 : x
  2. Step 2: Convert to fraction form
    21,602.09/32,391.41 = 9,741.99/x
  3. Step 3: Cross multiply
    21,602.09x = 32,391.41 × 9,741.99
  4. Step 4: Simplify right side
    21,602.09x = 315,556,686.97
  5. Step 5: Solve for x
    x = 315,556,686.97/21,602.09
  6. Step 6: Final answer
    x = 14,607.69

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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.