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Finding the Fourth Proportional to 7,410.64, 11,117.48 and 2,480.32

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Solution

The fourth proportional to 7,410.64, 11,117.48 and 2,480.32 is: 3,720.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,410.64 : 11,117.48 = 2,480.32 : x
  2. Step 2: Convert to fraction form
    7,410.64/11,117.48 = 2,480.32/x
  3. Step 3: Cross multiply
    7,410.64x = 11,117.48 × 2,480.32
  4. Step 4: Simplify right side
    7,410.64x = 27,574,907.99
  5. Step 5: Solve for x
    x = 27,574,907.99/7,410.64
  6. Step 6: Final answer
    x = 3,720.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.