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Finding the Fourth Proportional to 56,480.94, 84,722.02 and 17,038.40

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Solution

The fourth proportional to 56,480.94, 84,722.02 and 17,038.40 is: 25,557.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,480.94 : 84,722.02 = 17,038.40 : x
  2. Step 2: Convert to fraction form
    56,480.94/84,722.02 = 17,038.40/x
  3. Step 3: Cross multiply
    56,480.94x = 84,722.02 × 17,038.40
  4. Step 4: Simplify right side
    56,480.94x = 1,443,527,475.06
  5. Step 5: Solve for x
    x = 1,443,527,475.06/56,480.94
  6. Step 6: Final answer
    x = 25,557.78

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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.