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Finding the Fourth Proportional to 2,637.56, 3,639.12 and 1,503.24

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Solution

The fourth proportional to 2,637.56, 3,639.12 and 1,503.24 is: 2,074.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.56 : 3,639.12 = 1,503.24 : x
  2. Step 2: Convert to fraction form
    2,637.56/3,639.12 = 1,503.24/x
  3. Step 3: Cross multiply
    2,637.56x = 3,639.12 × 1,503.24
  4. Step 4: Simplify right side
    2,637.56x = 5,470,470.75
  5. Step 5: Solve for x
    x = 5,470,470.75/2,637.56
  6. Step 6: Final answer
    x = 2,074.06

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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.