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Finding the Fourth Proportional to 45,784.31, 68,988.45 and 37,646.63

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Solution

The fourth proportional to 45,784.31, 68,988.45 and 37,646.63 is: 56,726.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,784.31 : 68,988.45 = 37,646.63 : x
  2. Step 2: Convert to fraction form
    45,784.31/68,988.45 = 37,646.63/x
  3. Step 3: Cross multiply
    45,784.31x = 68,988.45 × 37,646.63
  4. Step 4: Simplify right side
    45,784.31x = 2,597,182,306.48
  5. Step 5: Solve for x
    x = 2,597,182,306.48/45,784.31
  6. Step 6: Final answer
    x = 56,726.47

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.