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Finding the Fourth Proportional to 14,694.20, 22,041.30 and 11,929.40

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Solution

The fourth proportional to 14,694.20, 22,041.30 and 11,929.40 is: 17,894.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,694.20 : 22,041.30 = 11,929.40 : x
  2. Step 2: Convert to fraction form
    14,694.20/22,041.30 = 11,929.40/x
  3. Step 3: Cross multiply
    14,694.20x = 22,041.30 × 11,929.40
  4. Step 4: Simplify right side
    14,694.20x = 262,939,484.22
  5. Step 5: Solve for x
    x = 262,939,484.22/14,694.20
  6. Step 6: Final answer
    x = 17,894.10

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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.