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Finding the Fourth Proportional to 15,026.64, 20,727.72 and 11,058

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Solution

The fourth proportional to 15,026.64, 20,727.72 and 11,058 is: 15,253.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,026.64 : 20,727.72 = 11,058 : x
  2. Step 2: Convert to fraction form
    15,026.64/20,727.72 = 11,058/x
  3. Step 3: Cross multiply
    15,026.64x = 20,727.72 × 11,058
  4. Step 4: Simplify right side
    15,026.64x = 229,207,127.76
  5. Step 5: Solve for x
    x = 229,207,127.76/15,026.64
  6. Step 6: Final answer
    x = 15,253.39

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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.