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Finding the Fourth Proportional to 2,616.51, 3,603.77 and 2,419.45

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Solution

The fourth proportional to 2,616.51, 3,603.77 and 2,419.45 is: 3,332.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.51 : 3,603.77 = 2,419.45 : x
  2. Step 2: Convert to fraction form
    2,616.51/3,603.77 = 2,419.45/x
  3. Step 3: Cross multiply
    2,616.51x = 3,603.77 × 2,419.45
  4. Step 4: Simplify right side
    2,616.51x = 8,719,129.29
  5. Step 5: Solve for x
    x = 8,719,129.29/2,616.51
  6. Step 6: Final answer
    x = 3,332.35

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1.5x scale

Why These Related Problems?

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