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Finding the Fourth Proportional to 21,749.94, 32,615.74 and 6,954.88

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Solution

The fourth proportional to 21,749.94, 32,615.74 and 6,954.88 is: 10,429.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,749.94 : 32,615.74 = 6,954.88 : x
  2. Step 2: Convert to fraction form
    21,749.94/32,615.74 = 6,954.88/x
  3. Step 3: Cross multiply
    21,749.94x = 32,615.74 × 6,954.88
  4. Step 4: Simplify right side
    21,749.94x = 226,838,557.81
  5. Step 5: Solve for x
    x = 226,838,557.81/21,749.94
  6. Step 6: Final answer
    x = 10,429.39

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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.