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Finding the Fourth Proportional to 21,042, 29,038.59 and 11,611.17

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Solution

The fourth proportional to 21,042, 29,038.59 and 11,611.17 is: 16,023.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042 : 29,038.59 = 11,611.17 : x
  2. Step 2: Convert to fraction form
    21,042/29,038.59 = 11,611.17/x
  3. Step 3: Cross multiply
    21,042x = 29,038.59 × 11,611.17
  4. Step 4: Simplify right side
    21,042x = 337,172,005.05
  5. Step 5: Solve for x
    x = 337,172,005.05/21,042
  6. Step 6: Final answer
    x = 16,023.76

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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.