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Finding the Fourth Proportional to 16,674.40, 25,014.40 and 4,988.80

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Solution

The fourth proportional to 16,674.40, 25,014.40 and 4,988.80 is: 7,484.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,674.40 : 25,014.40 = 4,988.80 : x
  2. Step 2: Convert to fraction form
    16,674.40/25,014.40 = 4,988.80/x
  3. Step 3: Cross multiply
    16,674.40x = 25,014.40 × 4,988.80
  4. Step 4: Simplify right side
    16,674.40x = 124,791,838.72
  5. Step 5: Solve for x
    x = 124,791,838.72/16,674.40
  6. Step 6: Final answer
    x = 7,484.04

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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.