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Finding the Fourth Proportional to 26,597.12, 39,900 and 9,962.88

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Solution

The fourth proportional to 26,597.12, 39,900 and 9,962.88 is: 14,945.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,597.12 : 39,900 = 9,962.88 : x
  2. Step 2: Convert to fraction form
    26,597.12/39,900 = 9,962.88/x
  3. Step 3: Cross multiply
    26,597.12x = 39,900 × 9,962.88
  4. Step 4: Simplify right side
    26,597.12x = 397,518,912.00
  5. Step 5: Solve for x
    x = 397,518,912.00/26,597.12
  6. Step 6: Final answer
    x = 14,945.94

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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.