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Finding the Fourth Proportional to 27,319.72, 40,977.73 and 9,790.11

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Solution

The fourth proportional to 27,319.72, 40,977.73 and 9,790.11 is: 14,684.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,319.72 : 40,977.73 = 9,790.11 : x
  2. Step 2: Convert to fraction form
    27,319.72/40,977.73 = 9,790.11/x
  3. Step 3: Cross multiply
    27,319.72x = 40,977.73 × 9,790.11
  4. Step 4: Simplify right side
    27,319.72x = 401,176,484.25
  5. Step 5: Solve for x
    x = 401,176,484.25/27,319.72
  6. Step 6: Final answer
    x = 14,684.50

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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.