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Finding the Fourth Proportional to 46,278, 63,872.28 and 26,406

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Solution

The fourth proportional to 46,278, 63,872.28 and 26,406 is: 36,445.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,278 : 63,872.28 = 26,406 : x
  2. Step 2: Convert to fraction form
    46,278/63,872.28 = 26,406/x
  3. Step 3: Cross multiply
    46,278x = 63,872.28 × 26,406
  4. Step 4: Simplify right side
    46,278x = 1,686,611,425.68
  5. Step 5: Solve for x
    x = 1,686,611,425.68/46,278
  6. Step 6: Final answer
    x = 36,445.21

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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.