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Finding the Fourth Proportional to 38,130, 52,619.40 and 23,226

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Solution

The fourth proportional to 38,130, 52,619.40 and 23,226 is: 32,051.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,130 : 52,619.40 = 23,226 : x
  2. Step 2: Convert to fraction form
    38,130/52,619.40 = 23,226/x
  3. Step 3: Cross multiply
    38,130x = 52,619.40 × 23,226
  4. Step 4: Simplify right side
    38,130x = 1,222,138,184.40
  5. Step 5: Solve for x
    x = 1,222,138,184.40/38,130
  6. Step 6: Final answer
    x = 32,051.88

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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.