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Finding the Fourth Proportional to 5,792.75, 8,689.13 and 1,688.75

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Solution

The fourth proportional to 5,792.75, 8,689.13 and 1,688.75 is: 2,533.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,792.75 : 8,689.13 = 1,688.75 : x
  2. Step 2: Convert to fraction form
    5,792.75/8,689.13 = 1,688.75/x
  3. Step 3: Cross multiply
    5,792.75x = 8,689.13 × 1,688.75
  4. Step 4: Simplify right side
    5,792.75x = 14,673,768.29
  5. Step 5: Solve for x
    x = 14,673,768.29/5,792.75
  6. Step 6: Final answer
    x = 2,533.13

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Half scale
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Double scale
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Similar ratio
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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.