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Finding the Fourth Proportional to 49,629, 74,444.04 and 12,693

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Solution

The fourth proportional to 49,629, 74,444.04 and 12,693 is: 19,039.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,629 : 74,444.04 = 12,693 : x
  2. Step 2: Convert to fraction form
    49,629/74,444.04 = 12,693/x
  3. Step 3: Cross multiply
    49,629x = 74,444.04 × 12,693
  4. Step 4: Simplify right side
    49,629x = 944,918,199.72
  5. Step 5: Solve for x
    x = 944,918,199.72/49,629
  6. Step 6: Final answer
    x = 19,039.64

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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.