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Finding the Fourth Proportional to 29,036.52, 43,536.06 and 12,407.40

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Solution

The fourth proportional to 29,036.52, 43,536.06 and 12,407.40 is: 18,603.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,036.52 : 43,536.06 = 12,407.40 : x
  2. Step 2: Convert to fraction form
    29,036.52/43,536.06 = 12,407.40/x
  3. Step 3: Cross multiply
    29,036.52x = 43,536.06 × 12,407.40
  4. Step 4: Simplify right side
    29,036.52x = 540,169,310.84
  5. Step 5: Solve for x
    x = 540,169,310.84/29,036.52
  6. Step 6: Final answer
    x = 18,603.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.