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Finding the Fourth Proportional to 7,583.42, 11,317.73 and 7,151.49

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Solution

The fourth proportional to 7,583.42, 11,317.73 and 7,151.49 is: 10,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,583.42 : 11,317.73 = 7,151.49 : x
  2. Step 2: Convert to fraction form
    7,583.42/11,317.73 = 7,151.49/x
  3. Step 3: Cross multiply
    7,583.42x = 11,317.73 × 7,151.49
  4. Step 4: Simplify right side
    7,583.42x = 80,938,597.16
  5. Step 5: Solve for x
    x = 80,938,597.16/7,583.42
  6. Step 6: Final answer
    x = 10,673.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.