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Finding the Fourth Proportional to 84,986, 127,479.18 and 29,582

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Solution

The fourth proportional to 84,986, 127,479.18 and 29,582 is: 44,373.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,986 : 127,479.18 = 29,582 : x
  2. Step 2: Convert to fraction form
    84,986/127,479.18 = 29,582/x
  3. Step 3: Cross multiply
    84,986x = 127,479.18 × 29,582
  4. Step 4: Simplify right side
    84,986x = 3,771,089,102.76
  5. Step 5: Solve for x
    x = 3,771,089,102.76/84,986
  6. Step 6: Final answer
    x = 44,373.06

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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.