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Finding the Fourth Proportional to 45,476.58, 68,257.53 and 27,980.58

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Solution

The fourth proportional to 45,476.58, 68,257.53 and 27,980.58 is: 41,997.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,476.58 : 68,257.53 = 27,980.58 : x
  2. Step 2: Convert to fraction form
    45,476.58/68,257.53 = 27,980.58/x
  3. Step 3: Cross multiply
    45,476.58x = 68,257.53 × 27,980.58
  4. Step 4: Simplify right side
    45,476.58x = 1,909,885,278.77
  5. Step 5: Solve for x
    x = 1,909,885,278.77/45,476.58
  6. Step 6: Final answer
    x = 41,997.12

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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.