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Finding the Fourth Proportional to 26,336, 36,343.70 and 15,158

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Solution

The fourth proportional to 26,336, 36,343.70 and 15,158 is: 20,918.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,336 : 36,343.70 = 15,158 : x
  2. Step 2: Convert to fraction form
    26,336/36,343.70 = 15,158/x
  3. Step 3: Cross multiply
    26,336x = 36,343.70 × 15,158
  4. Step 4: Simplify right side
    26,336x = 550,897,804.60
  5. Step 5: Solve for x
    x = 550,897,804.60/26,336
  6. Step 6: Final answer
    x = 20,918.05

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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.