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Finding the Fourth Proportional to 5,726.84, 8,583.60 and 4,688.60

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Solution

The fourth proportional to 5,726.84, 8,583.60 and 4,688.60 is: 7,027.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,726.84 : 8,583.60 = 4,688.60 : x
  2. Step 2: Convert to fraction form
    5,726.84/8,583.60 = 4,688.60/x
  3. Step 3: Cross multiply
    5,726.84x = 8,583.60 × 4,688.60
  4. Step 4: Simplify right side
    5,726.84x = 40,245,066.96
  5. Step 5: Solve for x
    x = 40,245,066.96/5,726.84
  6. Step 6: Final answer
    x = 7,027.45

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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.