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Finding the Fourth Proportional to 66,797.09, 92,242.43 and 42,965.13

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Solution

The fourth proportional to 66,797.09, 92,242.43 and 42,965.13 is: 59,332.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,797.09 : 92,242.43 = 42,965.13 : x
  2. Step 2: Convert to fraction form
    66,797.09/92,242.43 = 42,965.13/x
  3. Step 3: Cross multiply
    66,797.09x = 92,242.43 × 42,965.13
  4. Step 4: Simplify right side
    66,797.09x = 3,963,207,996.47
  5. Step 5: Solve for x
    x = 3,963,207,996.47/66,797.09
  6. Step 6: Final answer
    x = 59,332.05

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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.