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Finding the Fourth Proportional to 19,484, 26,892.24 and 12,036.32

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Solution

The fourth proportional to 19,484, 26,892.24 and 12,036.32 is: 16,612.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,484 : 26,892.24 = 12,036.32 : x
  2. Step 2: Convert to fraction form
    19,484/26,892.24 = 12,036.32/x
  3. Step 3: Cross multiply
    19,484x = 26,892.24 × 12,036.32
  4. Step 4: Simplify right side
    19,484x = 323,683,606.16
  5. Step 5: Solve for x
    x = 323,683,606.16/19,484
  6. Step 6: Final answer
    x = 16,612.79

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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.