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Finding the Fourth Proportional to 30,791.55, 46,187.33 and 7,417.98

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Solution

The fourth proportional to 30,791.55, 46,187.33 and 7,417.98 is: 11,126.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,791.55 : 46,187.33 = 7,417.98 : x
  2. Step 2: Convert to fraction form
    30,791.55/46,187.33 = 7,417.98/x
  3. Step 3: Cross multiply
    30,791.55x = 46,187.33 × 7,417.98
  4. Step 4: Simplify right side
    30,791.55x = 342,616,690.19
  5. Step 5: Solve for x
    x = 342,616,690.19/30,791.55
  6. Step 6: Final answer
    x = 11,126.97

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1.5x scale

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.