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Finding the Fourth Proportional to 2,991.84, 4,495.44 and 2,602.08

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Solution

The fourth proportional to 2,991.84, 4,495.44 and 2,602.08 is: 3,909.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.84 : 4,495.44 = 2,602.08 : x
  2. Step 2: Convert to fraction form
    2,991.84/4,495.44 = 2,602.08/x
  3. Step 3: Cross multiply
    2,991.84x = 4,495.44 × 2,602.08
  4. Step 4: Simplify right side
    2,991.84x = 11,697,494.52
  5. Step 5: Solve for x
    x = 11,697,494.52/2,991.84
  6. Step 6: Final answer
    x = 3,909.80

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1.5x scale

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.