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Finding the Fourth Proportional to 19,252.40, 28,943.40 and 16,401.20

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Solution

The fourth proportional to 19,252.40, 28,943.40 and 16,401.20 is: 24,657.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,252.40 : 28,943.40 = 16,401.20 : x
  2. Step 2: Convert to fraction form
    19,252.40/28,943.40 = 16,401.20/x
  3. Step 3: Cross multiply
    19,252.40x = 28,943.40 × 16,401.20
  4. Step 4: Simplify right side
    19,252.40x = 474,706,492.08
  5. Step 5: Solve for x
    x = 474,706,492.08/19,252.40
  6. Step 6: Final answer
    x = 24,657.00

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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.