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Finding the Fourth Proportional to 5,784.55, 8,681.51 and 3,287.32

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Solution

The fourth proportional to 5,784.55, 8,681.51 and 3,287.32 is: 4,933.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,784.55 : 8,681.51 = 3,287.32 : x
  2. Step 2: Convert to fraction form
    5,784.55/8,681.51 = 3,287.32/x
  3. Step 3: Cross multiply
    5,784.55x = 8,681.51 × 3,287.32
  4. Step 4: Simplify right side
    5,784.55x = 28,538,901.45
  5. Step 5: Solve for x
    x = 28,538,901.45/5,784.55
  6. Step 6: Final answer
    x = 4,933.64

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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.