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Finding the Fourth Proportional to 44,903.78, 61,934.65 and 30,538.08

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Solution

The fourth proportional to 44,903.78, 61,934.65 and 30,538.08 is: 42,120.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,903.78 : 61,934.65 = 30,538.08 : x
  2. Step 2: Convert to fraction form
    44,903.78/61,934.65 = 30,538.08/x
  3. Step 3: Cross multiply
    44,903.78x = 61,934.65 × 30,538.08
  4. Step 4: Simplify right side
    44,903.78x = 1,891,365,296.47
  5. Step 5: Solve for x
    x = 1,891,365,296.47/44,903.78
  6. Step 6: Final answer
    x = 42,120.40

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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.