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Finding the Fourth Proportional to 19,796.67, 27,303.48 and 15,332.49

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Solution

The fourth proportional to 19,796.67, 27,303.48 and 15,332.49 is: 21,146.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,796.67 : 27,303.48 = 15,332.49 : x
  2. Step 2: Convert to fraction form
    19,796.67/27,303.48 = 15,332.49/x
  3. Step 3: Cross multiply
    19,796.67x = 27,303.48 × 15,332.49
  4. Step 4: Simplify right side
    19,796.67x = 418,630,334.07
  5. Step 5: Solve for x
    x = 418,630,334.07/19,796.67
  6. Step 6: Final answer
    x = 21,146.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.