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Finding the Fourth Proportional to 5,719.72, 7,894.76 and 3,362.62

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Solution

The fourth proportional to 5,719.72, 7,894.76 and 3,362.62 is: 4,641.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.72 : 7,894.76 = 3,362.62 : x
  2. Step 2: Convert to fraction form
    5,719.72/7,894.76 = 3,362.62/x
  3. Step 3: Cross multiply
    5,719.72x = 7,894.76 × 3,362.62
  4. Step 4: Simplify right side
    5,719.72x = 26,547,077.87
  5. Step 5: Solve for x
    x = 26,547,077.87/5,719.72
  6. Step 6: Final answer
    x = 4,641.32

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Half scale
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Double scale
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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.