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Finding the Fourth Proportional to 8,988.10, 13,466.62 and 8,075.02

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Solution

The fourth proportional to 8,988.10, 13,466.62 and 8,075.02 is: 12,098.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.10 : 13,466.62 = 8,075.02 : x
  2. Step 2: Convert to fraction form
    8,988.10/13,466.62 = 8,075.02/x
  3. Step 3: Cross multiply
    8,988.10x = 13,466.62 × 8,075.02
  4. Step 4: Simplify right side
    8,988.10x = 108,743,225.83
  5. Step 5: Solve for x
    x = 108,743,225.83/8,988.10
  6. Step 6: Final answer
    x = 12,098.58

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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.