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Finding the Fourth Proportional to 27,903.96, 38,502.54 and 15,964.65

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Solution

The fourth proportional to 27,903.96, 38,502.54 and 15,964.65 is: 22,028.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,903.96 : 38,502.54 = 15,964.65 : x
  2. Step 2: Convert to fraction form
    27,903.96/38,502.54 = 15,964.65/x
  3. Step 3: Cross multiply
    27,903.96x = 38,502.54 × 15,964.65
  4. Step 4: Simplify right side
    27,903.96x = 614,679,575.21
  5. Step 5: Solve for x
    x = 614,679,575.21/27,903.96
  6. Step 6: Final answer
    x = 22,028.40

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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.