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Finding the Fourth Proportional to 5,716.56, 7,903.56 and 4,394.64

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Solution

The fourth proportional to 5,716.56, 7,903.56 and 4,394.64 is: 6,075.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,716.56 : 7,903.56 = 4,394.64 : x
  2. Step 2: Convert to fraction form
    5,716.56/7,903.56 = 4,394.64/x
  3. Step 3: Cross multiply
    5,716.56x = 7,903.56 × 4,394.64
  4. Step 4: Simplify right side
    5,716.56x = 34,733,300.92
  5. Step 5: Solve for x
    x = 34,733,300.92/5,716.56
  6. Step 6: Final answer
    x = 6,075.91

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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.