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Finding the Fourth Proportional to 24,978.79, 34,474.35 and 14,907.66

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Solution

The fourth proportional to 24,978.79, 34,474.35 and 14,907.66 is: 20,574.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,978.79 : 34,474.35 = 14,907.66 : x
  2. Step 2: Convert to fraction form
    24,978.79/34,474.35 = 14,907.66/x
  3. Step 3: Cross multiply
    24,978.79x = 34,474.35 × 14,907.66
  4. Step 4: Simplify right side
    24,978.79x = 513,931,888.52
  5. Step 5: Solve for x
    x = 513,931,888.52/24,978.79
  6. Step 6: Final answer
    x = 20,574.73

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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.