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Finding the Fourth Proportional to 62,986,743.24, 86,923,548 and 36,878,818.38

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Solution

The fourth proportional to 62,986,743.24, 86,923,548 and 36,878,818.38 is: 50,893,848.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,986,743.24 : 86,923,548 = 36,878,818.38 : x
  2. Step 2: Convert to fraction form
    62,986,743.24/86,923,548 = 36,878,818.38/x
  3. Step 3: Cross multiply
    62,986,743.24x = 86,923,548 × 36,878,818.38
  4. Step 4: Simplify right side
    62,986,743.24x = 3,205,637,739,637,212.50
  5. Step 5: Solve for x
    x = 3,205,637,739,637,212.50/62,986,743.24
  6. Step 6: Final answer
    x = 50,893,848.05

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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.