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Finding the Fourth Proportional to 55,592.72, 83,389.32 and 14,039.72

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Solution

The fourth proportional to 55,592.72, 83,389.32 and 14,039.72 is: 21,059.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,592.72 : 83,389.32 = 14,039.72 : x
  2. Step 2: Convert to fraction form
    55,592.72/83,389.32 = 14,039.72/x
  3. Step 3: Cross multiply
    55,592.72x = 83,389.32 × 14,039.72
  4. Step 4: Simplify right side
    55,592.72x = 1,170,762,703.79
  5. Step 5: Solve for x
    x = 1,170,762,703.79/55,592.72
  6. Step 6: Final answer
    x = 21,059.64

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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.