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Finding the Fourth Proportional to 4,979.73, 7,460.94 and 4,156.87

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Solution

The fourth proportional to 4,979.73, 7,460.94 and 4,156.87 is: 6,228.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.73 : 7,460.94 = 4,156.87 : x
  2. Step 2: Convert to fraction form
    4,979.73/7,460.94 = 4,156.87/x
  3. Step 3: Cross multiply
    4,979.73x = 7,460.94 × 4,156.87
  4. Step 4: Simplify right side
    4,979.73x = 31,014,133.51
  5. Step 5: Solve for x
    x = 31,014,133.51/4,979.73
  6. Step 6: Final answer
    x = 6,228.08

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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.