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Finding the Fourth Proportional to 21,052.92, 29,052.93 and 11,492.76

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Solution

The fourth proportional to 21,052.92, 29,052.93 and 11,492.76 is: 15,859.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.92 : 29,052.93 = 11,492.76 : x
  2. Step 2: Convert to fraction form
    21,052.92/29,052.93 = 11,492.76/x
  3. Step 3: Cross multiply
    21,052.92x = 29,052.93 × 11,492.76
  4. Step 4: Simplify right side
    21,052.92x = 333,898,351.79
  5. Step 5: Solve for x
    x = 333,898,351.79/21,052.92
  6. Step 6: Final answer
    x = 15,859.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.