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Finding the Fourth Proportional to 2,973.51, 4,460.52 and 782.25

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Solution

The fourth proportional to 2,973.51, 4,460.52 and 782.25 is: 1,173.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,973.51 : 4,460.52 = 782.25 : x
  2. Step 2: Convert to fraction form
    2,973.51/4,460.52 = 782.25/x
  3. Step 3: Cross multiply
    2,973.51x = 4,460.52 × 782.25
  4. Step 4: Simplify right side
    2,973.51x = 3,489,241.77
  5. Step 5: Solve for x
    x = 3,489,241.77/2,973.51
  6. Step 6: Final answer
    x = 1,173.44

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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.