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Finding the Fourth Proportional to 3,048.01, 4,571.66 and 856.93

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Solution

The fourth proportional to 3,048.01, 4,571.66 and 856.93 is: 1,285.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,048.01 : 4,571.66 = 856.93 : x
  2. Step 2: Convert to fraction form
    3,048.01/4,571.66 = 856.93/x
  3. Step 3: Cross multiply
    3,048.01x = 4,571.66 × 856.93
  4. Step 4: Simplify right side
    3,048.01x = 3,917,592.60
  5. Step 5: Solve for x
    x = 3,917,592.60/3,048.01
  6. Step 6: Final answer
    x = 1,285.30

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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.