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Finding the Fourth Proportional to 21,950.58, 32,929.29 and 7,156.08

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Solution

The fourth proportional to 21,950.58, 32,929.29 and 7,156.08 is: 10,735.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,950.58 : 32,929.29 = 7,156.08 : x
  2. Step 2: Convert to fraction form
    21,950.58/32,929.29 = 7,156.08/x
  3. Step 3: Cross multiply
    21,950.58x = 32,929.29 × 7,156.08
  4. Step 4: Simplify right side
    21,950.58x = 235,644,633.58
  5. Step 5: Solve for x
    x = 235,644,633.58/21,950.58
  6. Step 6: Final answer
    x = 10,735.23

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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.