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Finding the Fourth Proportional to 29,959.40, 44,987.70 and 21,697.40

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Solution

The fourth proportional to 29,959.40, 44,987.70 and 21,697.40 is: 32,581.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,959.40 : 44,987.70 = 21,697.40 : x
  2. Step 2: Convert to fraction form
    29,959.40/44,987.70 = 21,697.40/x
  3. Step 3: Cross multiply
    29,959.40x = 44,987.70 × 21,697.40
  4. Step 4: Simplify right side
    29,959.40x = 976,116,121.98
  5. Step 5: Solve for x
    x = 976,116,121.98/29,959.40
  6. Step 6: Final answer
    x = 32,581.30

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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.