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Finding the Fourth Proportional to 27,038.90, 40,563.02 and 12,051.34

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Solution

The fourth proportional to 27,038.90, 40,563.02 and 12,051.34 is: 18,079.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,038.90 : 40,563.02 = 12,051.34 : x
  2. Step 2: Convert to fraction form
    27,038.90/40,563.02 = 12,051.34/x
  3. Step 3: Cross multiply
    27,038.90x = 40,563.02 × 12,051.34
  4. Step 4: Simplify right side
    27,038.90x = 488,838,685.19
  5. Step 5: Solve for x
    x = 488,838,685.19/27,038.90
  6. Step 6: Final answer
    x = 18,079.09

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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.