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Finding the Fourth Proportional to 34,988,473.52, 48,293,697.14 and 20,308,869.12

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Solution

The fourth proportional to 34,988,473.52, 48,293,697.14 and 20,308,869.12 is: 28,031,813.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,988,473.52 : 48,293,697.14 = 20,308,869.12 : x
  2. Step 2: Convert to fraction form
    34,988,473.52/48,293,697.14 = 20,308,869.12/x
  3. Step 3: Cross multiply
    34,988,473.52x = 48,293,697.14 × 20,308,869.12
  4. Step 4: Simplify right side
    34,988,473.52x = 980,790,374,537,178.38
  5. Step 5: Solve for x
    x = 980,790,374,537,178.38/34,988,473.52
  6. Step 6: Final answer
    x = 28,031,813.79

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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.