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Finding the Fourth Proportional to 14,892.76, 22,319.97 and 7,872.49

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Solution

The fourth proportional to 14,892.76, 22,319.97 and 7,872.49 is: 11,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,892.76 : 22,319.97 = 7,872.49 : x
  2. Step 2: Convert to fraction form
    14,892.76/22,319.97 = 7,872.49/x
  3. Step 3: Cross multiply
    14,892.76x = 22,319.97 × 7,872.49
  4. Step 4: Simplify right side
    14,892.76x = 175,713,740.63
  5. Step 5: Solve for x
    x = 175,713,740.63/14,892.76
  6. Step 6: Final answer
    x = 11,798.60

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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.