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Finding the Fourth Proportional to 1,759.77, 2,428.74 and 1,061.13

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Solution

The fourth proportional to 1,759.77, 2,428.74 and 1,061.13 is: 1,464.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,759.77 : 2,428.74 = 1,061.13 : x
  2. Step 2: Convert to fraction form
    1,759.77/2,428.74 = 1,061.13/x
  3. Step 3: Cross multiply
    1,759.77x = 2,428.74 × 1,061.13
  4. Step 4: Simplify right side
    1,759.77x = 2,577,208.88
  5. Step 5: Solve for x
    x = 2,577,208.88/1,759.77
  6. Step 6: Final answer
    x = 1,464.51

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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.