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Finding the Fourth Proportional to 44,751.68, 61,681.28 and 30,579.84

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Solution

The fourth proportional to 44,751.68, 61,681.28 and 30,579.84 is: 42,148.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,751.68 : 61,681.28 = 30,579.84 : x
  2. Step 2: Convert to fraction form
    44,751.68/61,681.28 = 30,579.84/x
  3. Step 3: Cross multiply
    44,751.68x = 61,681.28 × 30,579.84
  4. Step 4: Simplify right side
    44,751.68x = 1,886,203,673.40
  5. Step 5: Solve for x
    x = 1,886,203,673.40/44,751.68
  6. Step 6: Final answer
    x = 42,148.22

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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.