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Finding the Fourth Proportional to 7,136.17, 9,845.15 and 4,303.80

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Solution

The fourth proportional to 7,136.17, 9,845.15 and 4,303.80 is: 5,937.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.17 : 9,845.15 = 4,303.80 : x
  2. Step 2: Convert to fraction form
    7,136.17/9,845.15 = 4,303.80/x
  3. Step 3: Cross multiply
    7,136.17x = 9,845.15 × 4,303.80
  4. Step 4: Simplify right side
    7,136.17x = 42,371,535.05
  5. Step 5: Solve for x
    x = 42,371,535.05/7,136.17
  6. Step 6: Final answer
    x = 5,937.58

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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.