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Finding the Fourth Proportional to 1,416.88, 1,956.01 and 886.06

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Solution

The fourth proportional to 1,416.88, 1,956.01 and 886.06 is: 1,223.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.88 : 1,956.01 = 886.06 : x
  2. Step 2: Convert to fraction form
    1,416.88/1,956.01 = 886.06/x
  3. Step 3: Cross multiply
    1,416.88x = 1,956.01 × 886.06
  4. Step 4: Simplify right side
    1,416.88x = 1,733,137.79
  5. Step 5: Solve for x
    x = 1,733,137.79/1,416.88
  6. Step 6: Final answer
    x = 1,223.21

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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.