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Finding the Fourth Proportional to 56,878.84, 85,329.06 and 25,714

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Solution

The fourth proportional to 56,878.84, 85,329.06 and 25,714 is: 38,575.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,878.84 : 85,329.06 = 25,714 : x
  2. Step 2: Convert to fraction form
    56,878.84/85,329.06 = 25,714/x
  3. Step 3: Cross multiply
    56,878.84x = 85,329.06 × 25,714
  4. Step 4: Simplify right side
    56,878.84x = 2,194,151,448.84
  5. Step 5: Solve for x
    x = 2,194,151,448.84/56,878.84
  6. Step 6: Final answer
    x = 38,575.88

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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.