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Finding the Fourth Proportional to 2,541.16, 3,811.74 and 717.16

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Solution

The fourth proportional to 2,541.16, 3,811.74 and 717.16 is: 1,075.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,541.16 : 3,811.74 = 717.16 : x
  2. Step 2: Convert to fraction form
    2,541.16/3,811.74 = 717.16/x
  3. Step 3: Cross multiply
    2,541.16x = 3,811.74 × 717.16
  4. Step 4: Simplify right side
    2,541.16x = 2,733,627.46
  5. Step 5: Solve for x
    x = 2,733,627.46/2,541.16
  6. Step 6: Final answer
    x = 1,075.74

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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.