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Finding the Fourth Proportional to 4,651.90, 6,977.90 and 1,365.06

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Solution

The fourth proportional to 4,651.90, 6,977.90 and 1,365.06 is: 2,047.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,651.90 : 6,977.90 = 1,365.06 : x
  2. Step 2: Convert to fraction form
    4,651.90/6,977.90 = 1,365.06/x
  3. Step 3: Cross multiply
    4,651.90x = 6,977.90 × 1,365.06
  4. Step 4: Simplify right side
    4,651.90x = 9,525,252.17
  5. Step 5: Solve for x
    x = 9,525,252.17/4,651.90
  6. Step 6: Final answer
    x = 2,047.60

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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.