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Finding the Fourth Proportional to 17,907.40, 26,828.70 and 10,973.80

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Solution

The fourth proportional to 17,907.40, 26,828.70 and 10,973.80 is: 16,440.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,907.40 : 26,828.70 = 10,973.80 : x
  2. Step 2: Convert to fraction form
    17,907.40/26,828.70 = 10,973.80/x
  3. Step 3: Cross multiply
    17,907.40x = 26,828.70 × 10,973.80
  4. Step 4: Simplify right side
    17,907.40x = 294,412,788.06
  5. Step 5: Solve for x
    x = 294,412,788.06/17,907.40
  6. Step 6: Final answer
    x = 16,440.85

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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.