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Finding the Fourth Proportional to 18,443.34, 27,681.53 and 9,565.03

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Solution

The fourth proportional to 18,443.34, 27,681.53 and 9,565.03 is: 14,356.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443.34 : 27,681.53 = 9,565.03 : x
  2. Step 2: Convert to fraction form
    18,443.34/27,681.53 = 9,565.03/x
  3. Step 3: Cross multiply
    18,443.34x = 27,681.53 × 9,565.03
  4. Step 4: Simplify right side
    18,443.34x = 264,774,664.90
  5. Step 5: Solve for x
    x = 264,774,664.90/18,443.34
  6. Step 6: Final answer
    x = 14,356.11

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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.