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Finding the Fourth Proportional to 6,555.74, 9,047 and 3,571.60

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Solution

The fourth proportional to 6,555.74, 9,047 and 3,571.60 is: 4,928.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,555.74 : 9,047 = 3,571.60 : x
  2. Step 2: Convert to fraction form
    6,555.74/9,047 = 3,571.60/x
  3. Step 3: Cross multiply
    6,555.74x = 9,047 × 3,571.60
  4. Step 4: Simplify right side
    6,555.74x = 32,312,265.20
  5. Step 5: Solve for x
    x = 32,312,265.20/6,555.74
  6. Step 6: Final answer
    x = 4,928.85

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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.