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Finding the Fourth Proportional to 8,075.59, 11,143.05 and 4,538.11

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Solution

The fourth proportional to 8,075.59, 11,143.05 and 4,538.11 is: 6,261.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.59 : 11,143.05 = 4,538.11 : x
  2. Step 2: Convert to fraction form
    8,075.59/11,143.05 = 4,538.11/x
  3. Step 3: Cross multiply
    8,075.59x = 11,143.05 × 4,538.11
  4. Step 4: Simplify right side
    8,075.59x = 50,568,386.64
  5. Step 5: Solve for x
    x = 50,568,386.64/8,075.59
  6. Step 6: Final answer
    x = 6,261.88

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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.