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Finding the Fourth Proportional to 26,551.42, 39,813.36 and 7,828.99

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Solution

The fourth proportional to 26,551.42, 39,813.36 and 7,828.99 is: 11,739.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,551.42 : 39,813.36 = 7,828.99 : x
  2. Step 2: Convert to fraction form
    26,551.42/39,813.36 = 7,828.99/x
  3. Step 3: Cross multiply
    26,551.42x = 39,813.36 × 7,828.99
  4. Step 4: Simplify right side
    26,551.42x = 311,698,397.31
  5. Step 5: Solve for x
    x = 311,698,397.31/26,551.42
  6. Step 6: Final answer
    x = 11,739.42

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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.