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Finding the Fourth Proportional to 14,253.51, 21,381.96 and 5,939.16

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Solution

The fourth proportional to 14,253.51, 21,381.96 and 5,939.16 is: 8,909.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,253.51 : 21,381.96 = 5,939.16 : x
  2. Step 2: Convert to fraction form
    14,253.51/21,381.96 = 5,939.16/x
  3. Step 3: Cross multiply
    14,253.51x = 21,381.96 × 5,939.16
  4. Step 4: Simplify right side
    14,253.51x = 126,990,881.55
  5. Step 5: Solve for x
    x = 126,990,881.55/14,253.51
  6. Step 6: Final answer
    x = 8,909.45

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1.5x scale

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.