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Finding the Fourth Proportional to 4,661.55, 6,987.87 and 1,739.07

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Solution

The fourth proportional to 4,661.55, 6,987.87 and 1,739.07 is: 2,606.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,661.55 : 6,987.87 = 1,739.07 : x
  2. Step 2: Convert to fraction form
    4,661.55/6,987.87 = 1,739.07/x
  3. Step 3: Cross multiply
    4,661.55x = 6,987.87 × 1,739.07
  4. Step 4: Simplify right side
    4,661.55x = 12,152,395.08
  5. Step 5: Solve for x
    x = 12,152,395.08/4,661.55
  6. Step 6: Final answer
    x = 2,606.94

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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.