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Finding the Fourth Proportional to 14,443.79, 19,921.73 and 9,133.47

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Solution

The fourth proportional to 14,443.79, 19,921.73 and 9,133.47 is: 12,597.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,443.79 : 19,921.73 = 9,133.47 : x
  2. Step 2: Convert to fraction form
    14,443.79/19,921.73 = 9,133.47/x
  3. Step 3: Cross multiply
    14,443.79x = 19,921.73 × 9,133.47
  4. Step 4: Simplify right side
    14,443.79x = 181,954,477.64
  5. Step 5: Solve for x
    x = 181,954,477.64/14,443.79
  6. Step 6: Final answer
    x = 12,597.42

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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.