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Finding the Fourth Proportional to 1,622.62, 2,239.14 and 924.01

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Solution

The fourth proportional to 1,622.62, 2,239.14 and 924.01 is: 1,275.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.62 : 2,239.14 = 924.01 : x
  2. Step 2: Convert to fraction form
    1,622.62/2,239.14 = 924.01/x
  3. Step 3: Cross multiply
    1,622.62x = 2,239.14 × 924.01
  4. Step 4: Simplify right side
    1,622.62x = 2,068,987.75
  5. Step 5: Solve for x
    x = 2,068,987.75/1,622.62
  6. Step 6: Final answer
    x = 1,275.09

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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.