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Finding the Fourth Proportional to 21,650.63, 29,877.95 and 11,714.63

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Solution

The fourth proportional to 21,650.63, 29,877.95 and 11,714.63 is: 16,166.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,650.63 : 29,877.95 = 11,714.63 : x
  2. Step 2: Convert to fraction form
    21,650.63/29,877.95 = 11,714.63/x
  3. Step 3: Cross multiply
    21,650.63x = 29,877.95 × 11,714.63
  4. Step 4: Simplify right side
    21,650.63x = 350,009,009.31
  5. Step 5: Solve for x
    x = 350,009,009.31/21,650.63
  6. Step 6: Final answer
    x = 16,166.23

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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.