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Finding the Fourth Proportional to 19,384.80, 29,077.20 and 16,274.40

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Solution

The fourth proportional to 19,384.80, 29,077.20 and 16,274.40 is: 24,411.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,384.80 : 29,077.20 = 16,274.40 : x
  2. Step 2: Convert to fraction form
    19,384.80/29,077.20 = 16,274.40/x
  3. Step 3: Cross multiply
    19,384.80x = 29,077.20 × 16,274.40
  4. Step 4: Simplify right side
    19,384.80x = 473,213,983.68
  5. Step 5: Solve for x
    x = 473,213,983.68/19,384.80
  6. Step 6: Final answer
    x = 24,411.60

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1.5x scale

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.