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Finding the Fourth Proportional to 19,558.16, 26,985.13 and 11,602.16

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Solution

The fourth proportional to 19,558.16, 26,985.13 and 11,602.16 is: 16,007.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,558.16 : 26,985.13 = 11,602.16 : x
  2. Step 2: Convert to fraction form
    19,558.16/26,985.13 = 11,602.16/x
  3. Step 3: Cross multiply
    19,558.16x = 26,985.13 × 11,602.16
  4. Step 4: Simplify right side
    19,558.16x = 313,085,631.95
  5. Step 5: Solve for x
    x = 313,085,631.95/19,558.16
  6. Step 6: Final answer
    x = 16,007.93

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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.