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Finding the Fourth Proportional to 21,894.92, 32,846.99 and 7,102.68

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Solution

The fourth proportional to 21,894.92, 32,846.99 and 7,102.68 is: 10,655.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,894.92 : 32,846.99 = 7,102.68 : x
  2. Step 2: Convert to fraction form
    21,894.92/32,846.99 = 7,102.68/x
  3. Step 3: Cross multiply
    21,894.92x = 32,846.99 × 7,102.68
  4. Step 4: Simplify right side
    21,894.92x = 233,301,658.93
  5. Step 5: Solve for x
    x = 233,301,658.93/21,894.92
  6. Step 6: Final answer
    x = 10,655.52

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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.