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Finding the Fourth Proportional to 7,136.02, 9,907.01 and 6,922.18

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Solution

The fourth proportional to 7,136.02, 9,907.01 and 6,922.18 is: 9,610.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.02 : 9,907.01 = 6,922.18 : x
  2. Step 2: Convert to fraction form
    7,136.02/9,907.01 = 6,922.18/x
  3. Step 3: Cross multiply
    7,136.02x = 9,907.01 × 6,922.18
  4. Step 4: Simplify right side
    7,136.02x = 68,578,106.48
  5. Step 5: Solve for x
    x = 68,578,106.48/7,136.02
  6. Step 6: Final answer
    x = 9,610.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.