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Finding the Fourth Proportional to 51,640.41, 77,398.31 and 26,666.84

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Solution

The fourth proportional to 51,640.41, 77,398.31 and 26,666.84 is: 39,968.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,640.41 : 77,398.31 = 26,666.84 : x
  2. Step 2: Convert to fraction form
    51,640.41/77,398.31 = 26,666.84/x
  3. Step 3: Cross multiply
    51,640.41x = 77,398.31 × 26,666.84
  4. Step 4: Simplify right side
    51,640.41x = 2,063,967,962.05
  5. Step 5: Solve for x
    x = 2,063,967,962.05/51,640.41
  6. Step 6: Final answer
    x = 39,968.08

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1.5x scale

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.