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Finding the Fourth Proportional to 2,656.84, 3,985.26 and 924.52

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Solution

The fourth proportional to 2,656.84, 3,985.26 and 924.52 is: 1,386.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656.84 : 3,985.26 = 924.52 : x
  2. Step 2: Convert to fraction form
    2,656.84/3,985.26 = 924.52/x
  3. Step 3: Cross multiply
    2,656.84x = 3,985.26 × 924.52
  4. Step 4: Simplify right side
    2,656.84x = 3,684,452.58
  5. Step 5: Solve for x
    x = 3,684,452.58/2,656.84
  6. Step 6: Final answer
    x = 1,386.78

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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.