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Finding the Fourth Proportional to 21,955.44, 32,933.34 and 7,164.06

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Solution

The fourth proportional to 21,955.44, 32,933.34 and 7,164.06 is: 10,746.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955.44 : 32,933.34 = 7,164.06 : x
  2. Step 2: Convert to fraction form
    21,955.44/32,933.34 = 7,164.06/x
  3. Step 3: Cross multiply
    21,955.44x = 32,933.34 × 7,164.06
  4. Step 4: Simplify right side
    21,955.44x = 235,936,423.76
  5. Step 5: Solve for x
    x = 235,936,423.76/21,955.44
  6. Step 6: Final answer
    x = 10,746.15

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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.