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Finding the Fourth Proportional to 44,302.05, 66,443.04 and 12,712.05

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Solution

The fourth proportional to 44,302.05, 66,443.04 and 12,712.05 is: 19,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,302.05 : 66,443.04 = 12,712.05 : x
  2. Step 2: Convert to fraction form
    44,302.05/66,443.04 = 12,712.05/x
  3. Step 3: Cross multiply
    44,302.05x = 66,443.04 × 12,712.05
  4. Step 4: Simplify right side
    44,302.05x = 844,627,246.63
  5. Step 5: Solve for x
    x = 844,627,246.63/44,302.05
  6. Step 6: Final answer
    x = 19,065.20

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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.