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Finding the Fourth Proportional to 3,603.60, 4,972.80 and 2,424.48

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Solution

The fourth proportional to 3,603.60, 4,972.80 and 2,424.48 is: 3,345.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.60 : 4,972.80 = 2,424.48 : x
  2. Step 2: Convert to fraction form
    3,603.60/4,972.80 = 2,424.48/x
  3. Step 3: Cross multiply
    3,603.60x = 4,972.80 × 2,424.48
  4. Step 4: Simplify right side
    3,603.60x = 12,056,454.14
  5. Step 5: Solve for x
    x = 12,056,454.14/3,603.60
  6. Step 6: Final answer
    x = 3,345.67

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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.