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Finding the Fourth Proportional to 21,750.56, 32,623.74 and 6,955.51

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Solution

The fourth proportional to 21,750.56, 32,623.74 and 6,955.51 is: 10,432.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,750.56 : 32,623.74 = 6,955.51 : x
  2. Step 2: Convert to fraction form
    21,750.56/32,623.74 = 6,955.51/x
  3. Step 3: Cross multiply
    21,750.56x = 32,623.74 × 6,955.51
  4. Step 4: Simplify right side
    21,750.56x = 226,914,749.81
  5. Step 5: Solve for x
    x = 226,914,749.81/21,750.56
  6. Step 6: Final answer
    x = 10,432.59

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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.