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Finding the Fourth Proportional to 11,558.25, 15,950.39 and 7,368.93

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Solution

The fourth proportional to 11,558.25, 15,950.39 and 7,368.93 is: 10,169.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,558.25 : 15,950.39 = 7,368.93 : x
  2. Step 2: Convert to fraction form
    11,558.25/15,950.39 = 7,368.93/x
  3. Step 3: Cross multiply
    11,558.25x = 15,950.39 × 7,368.93
  4. Step 4: Simplify right side
    11,558.25x = 117,537,270.54
  5. Step 5: Solve for x
    x = 117,537,270.54/11,558.25
  6. Step 6: Final answer
    x = 10,169.12

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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.