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Finding the Fourth Proportional to 38,407.78, 57,597.80 and 14,721.98

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Solution

The fourth proportional to 38,407.78, 57,597.80 and 14,721.98 is: 22,077.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,407.78 : 57,597.80 = 14,721.98 : x
  2. Step 2: Convert to fraction form
    38,407.78/57,597.80 = 14,721.98/x
  3. Step 3: Cross multiply
    38,407.78x = 57,597.80 × 14,721.98
  4. Step 4: Simplify right side
    38,407.78x = 847,953,659.64
  5. Step 5: Solve for x
    x = 847,953,659.64/38,407.78
  6. Step 6: Final answer
    x = 22,077.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.