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Finding the Fourth Proportional to 40,377.94, 60,570.94 and 15,438.96

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Solution

The fourth proportional to 40,377.94, 60,570.94 and 15,438.96 is: 23,159.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,377.94 : 60,570.94 = 15,438.96 : x
  2. Step 2: Convert to fraction form
    40,377.94/60,570.94 = 15,438.96/x
  3. Step 3: Cross multiply
    40,377.94x = 60,570.94 × 15,438.96
  4. Step 4: Simplify right side
    40,377.94x = 935,152,319.82
  5. Step 5: Solve for x
    x = 935,152,319.82/40,377.94
  6. Step 6: Final answer
    x = 23,159.98

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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.