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Finding the Fourth Proportional to 4,890.86, 6,750.77 and 4,008.77

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Solution

The fourth proportional to 4,890.86, 6,750.77 and 4,008.77 is: 5,533.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.86 : 6,750.77 = 4,008.77 : x
  2. Step 2: Convert to fraction form
    4,890.86/6,750.77 = 4,008.77/x
  3. Step 3: Cross multiply
    4,890.86x = 6,750.77 × 4,008.77
  4. Step 4: Simplify right side
    4,890.86x = 27,062,230.46
  5. Step 5: Solve for x
    x = 27,062,230.46/4,890.86
  6. Step 6: Final answer
    x = 5,533.23

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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.