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Finding the Fourth Proportional to 3,606.16, 4,977.16 and 3,015.76

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Solution

The fourth proportional to 3,606.16, 4,977.16 and 3,015.76 is: 4,162.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.16 : 4,977.16 = 3,015.76 : x
  2. Step 2: Convert to fraction form
    3,606.16/4,977.16 = 3,015.76/x
  3. Step 3: Cross multiply
    3,606.16x = 4,977.16 × 3,015.76
  4. Step 4: Simplify right side
    3,606.16x = 15,009,920.04
  5. Step 5: Solve for x
    x = 15,009,920.04/3,606.16
  6. Step 6: Final answer
    x = 4,162.30

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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.