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Finding the Fourth Proportional to 3,603.58, 5,369.55 and 3,210.56

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Solution

The fourth proportional to 3,603.58, 5,369.55 and 3,210.56 is: 4,783.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.58 : 5,369.55 = 3,210.56 : x
  2. Step 2: Convert to fraction form
    3,603.58/5,369.55 = 3,210.56/x
  3. Step 3: Cross multiply
    3,603.58x = 5,369.55 × 3,210.56
  4. Step 4: Simplify right side
    3,603.58x = 17,239,275.87
  5. Step 5: Solve for x
    x = 17,239,275.87/3,603.58
  6. Step 6: Final answer
    x = 4,783.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.