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Finding the Fourth Proportional to 25,978.88, 39,007.28 and 14,898.08

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Solution

The fourth proportional to 25,978.88, 39,007.28 and 14,898.08 is: 22,369.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,978.88 : 39,007.28 = 14,898.08 : x
  2. Step 2: Convert to fraction form
    25,978.88/39,007.28 = 14,898.08/x
  3. Step 3: Cross multiply
    25,978.88x = 39,007.28 × 14,898.08
  4. Step 4: Simplify right side
    25,978.88x = 581,133,578.02
  5. Step 5: Solve for x
    x = 581,133,578.02/25,978.88
  6. Step 6: Final answer
    x = 22,369.46

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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.