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Finding the Fourth Proportional to 4,699.02, 7,048.53 and 1,621.02

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Solution

The fourth proportional to 4,699.02, 7,048.53 and 1,621.02 is: 2,431.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,699.02 : 7,048.53 = 1,621.02 : x
  2. Step 2: Convert to fraction form
    4,699.02/7,048.53 = 1,621.02/x
  3. Step 3: Cross multiply
    4,699.02x = 7,048.53 × 1,621.02
  4. Step 4: Simplify right side
    4,699.02x = 11,425,808.10
  5. Step 5: Solve for x
    x = 11,425,808.10/4,699.02
  6. Step 6: Final answer
    x = 2,431.53

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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.