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Finding the Fourth Proportional to 4,954.78, 6,837.54 and 2,858.86

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Solution

The fourth proportional to 4,954.78, 6,837.54 and 2,858.86 is: 3,945.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,954.78 : 6,837.54 = 2,858.86 : x
  2. Step 2: Convert to fraction form
    4,954.78/6,837.54 = 2,858.86/x
  3. Step 3: Cross multiply
    4,954.78x = 6,837.54 × 2,858.86
  4. Step 4: Simplify right side
    4,954.78x = 19,547,569.60
  5. Step 5: Solve for x
    x = 19,547,569.60/4,954.78
  6. Step 6: Final answer
    x = 3,945.19

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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.