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Finding the Fourth Proportional to 6,078.51, 9,136.80 and 4,011.80

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Solution

The fourth proportional to 6,078.51, 9,136.80 and 4,011.80 is: 6,030.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,078.51 : 9,136.80 = 4,011.80 : x
  2. Step 2: Convert to fraction form
    6,078.51/9,136.80 = 4,011.80/x
  3. Step 3: Cross multiply
    6,078.51x = 9,136.80 × 4,011.80
  4. Step 4: Simplify right side
    6,078.51x = 36,655,014.24
  5. Step 5: Solve for x
    x = 36,655,014.24/6,078.51
  6. Step 6: Final answer
    x = 6,030.26

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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.