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Finding the Fourth Proportional to 69,963.84, 96,547.14 and 38,131.98

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Solution

The fourth proportional to 69,963.84, 96,547.14 and 38,131.98 is: 52,620.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,963.84 : 96,547.14 = 38,131.98 : x
  2. Step 2: Convert to fraction form
    69,963.84/96,547.14 = 38,131.98/x
  3. Step 3: Cross multiply
    69,963.84x = 96,547.14 × 38,131.98
  4. Step 4: Simplify right side
    69,963.84x = 3,681,533,611.54
  5. Step 5: Solve for x
    x = 3,681,533,611.54/69,963.84
  6. Step 6: Final answer
    x = 52,620.52

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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.