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Finding the Fourth Proportional to 2,995.90, 4,492.62 and 1,047.64

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Solution

The fourth proportional to 2,995.90, 4,492.62 and 1,047.64 is: 1,571.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995.90 : 4,492.62 = 1,047.64 : x
  2. Step 2: Convert to fraction form
    2,995.90/4,492.62 = 1,047.64/x
  3. Step 3: Cross multiply
    2,995.90x = 4,492.62 × 1,047.64
  4. Step 4: Simplify right side
    2,995.90x = 4,706,648.42
  5. Step 5: Solve for x
    x = 4,706,648.42/2,995.90
  6. Step 6: Final answer
    x = 1,571.03

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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.