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Finding the Fourth Proportional to 9,075.93, 13,615.12 and 8,913.12

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Solution

The fourth proportional to 9,075.93, 13,615.12 and 8,913.12 is: 13,370.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,075.93 : 13,615.12 = 8,913.12 : x
  2. Step 2: Convert to fraction form
    9,075.93/13,615.12 = 8,913.12/x
  3. Step 3: Cross multiply
    9,075.93x = 13,615.12 × 8,913.12
  4. Step 4: Simplify right side
    9,075.93x = 121,353,198.37
  5. Step 5: Solve for x
    x = 121,353,198.37/9,075.93
  6. Step 6: Final answer
    x = 13,370.88

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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.