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Finding the Fourth Proportional to 5,509.33, 7,603.02 and 3,151.69

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Solution

The fourth proportional to 5,509.33, 7,603.02 and 3,151.69 is: 4,349.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.33 : 7,603.02 = 3,151.69 : x
  2. Step 2: Convert to fraction form
    5,509.33/7,603.02 = 3,151.69/x
  3. Step 3: Cross multiply
    5,509.33x = 7,603.02 × 3,151.69
  4. Step 4: Simplify right side
    5,509.33x = 23,962,362.10
  5. Step 5: Solve for x
    x = 23,962,362.10/5,509.33
  6. Step 6: Final answer
    x = 4,349.41

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Half scale
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Double scale
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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.