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Finding the Fourth Proportional to 5,572.80, 7,690.56 and 3,055.08

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Solution

The fourth proportional to 5,572.80, 7,690.56 and 3,055.08 is: 4,216.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,572.80 : 7,690.56 = 3,055.08 : x
  2. Step 2: Convert to fraction form
    5,572.80/7,690.56 = 3,055.08/x
  3. Step 3: Cross multiply
    5,572.80x = 7,690.56 × 3,055.08
  4. Step 4: Simplify right side
    5,572.80x = 23,495,276.04
  5. Step 5: Solve for x
    x = 23,495,276.04/5,572.80
  6. Step 6: Final answer
    x = 4,216.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.