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Finding the Fourth Proportional to 3,492.63, 5,241 and 1,302.90

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Solution

The fourth proportional to 3,492.63, 5,241 and 1,302.90 is: 1,955.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.63 : 5,241 = 1,302.90 : x
  2. Step 2: Convert to fraction form
    3,492.63/5,241 = 1,302.90/x
  3. Step 3: Cross multiply
    3,492.63x = 5,241 × 1,302.90
  4. Step 4: Simplify right side
    3,492.63x = 6,828,498.90
  5. Step 5: Solve for x
    x = 6,828,498.90/3,492.63
  6. Step 6: Final answer
    x = 1,955.12

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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.