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Finding the Fourth Proportional to 27,285.80, 40,907.10 and 14,973.80

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Solution

The fourth proportional to 27,285.80, 40,907.10 and 14,973.80 is: 22,448.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,285.80 : 40,907.10 = 14,973.80 : x
  2. Step 2: Convert to fraction form
    27,285.80/40,907.10 = 14,973.80/x
  3. Step 3: Cross multiply
    27,285.80x = 40,907.10 × 14,973.80
  4. Step 4: Simplify right side
    27,285.80x = 612,534,733.98
  5. Step 5: Solve for x
    x = 612,534,733.98/27,285.80
  6. Step 6: Final answer
    x = 22,448.85

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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.