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Finding the Fourth Proportional to 14,953.40, 22,404.90 and 11,821.40

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Solution

The fourth proportional to 14,953.40, 22,404.90 and 11,821.40 is: 17,712.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,953.40 : 22,404.90 = 11,821.40 : x
  2. Step 2: Convert to fraction form
    14,953.40/22,404.90 = 11,821.40/x
  3. Step 3: Cross multiply
    14,953.40x = 22,404.90 × 11,821.40
  4. Step 4: Simplify right side
    14,953.40x = 264,857,284.86
  5. Step 5: Solve for x
    x = 264,857,284.86/14,953.40
  6. Step 6: Final answer
    x = 17,712.18

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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.