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Finding the Fourth Proportional to 22,443.66, 30,980.16 and 13,952.52

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Solution

The fourth proportional to 22,443.66, 30,980.16 and 13,952.52 is: 19,259.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,443.66 : 30,980.16 = 13,952.52 : x
  2. Step 2: Convert to fraction form
    22,443.66/30,980.16 = 13,952.52/x
  3. Step 3: Cross multiply
    22,443.66x = 30,980.16 × 13,952.52
  4. Step 4: Simplify right side
    22,443.66x = 432,251,302.00
  5. Step 5: Solve for x
    x = 432,251,302.00/22,443.66
  6. Step 6: Final answer
    x = 19,259.39

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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.