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Finding the Fourth Proportional to 7,159.74, 10,740.09 and 2,480.22

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Solution

The fourth proportional to 7,159.74, 10,740.09 and 2,480.22 is: 3,720.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.74 : 10,740.09 = 2,480.22 : x
  2. Step 2: Convert to fraction form
    7,159.74/10,740.09 = 2,480.22/x
  3. Step 3: Cross multiply
    7,159.74x = 10,740.09 × 2,480.22
  4. Step 4: Simplify right side
    7,159.74x = 26,637,786.02
  5. Step 5: Solve for x
    x = 26,637,786.02/7,159.74
  6. Step 6: Final answer
    x = 3,720.50

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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.