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Finding the Fourth Proportional to 22,712.40, 34,068.60 and 11,653.20

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Solution

The fourth proportional to 22,712.40, 34,068.60 and 11,653.20 is: 17,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,712.40 : 34,068.60 = 11,653.20 : x
  2. Step 2: Convert to fraction form
    22,712.40/34,068.60 = 11,653.20/x
  3. Step 3: Cross multiply
    22,712.40x = 34,068.60 × 11,653.20
  4. Step 4: Simplify right side
    22,712.40x = 397,008,209.52
  5. Step 5: Solve for x
    x = 397,008,209.52/22,712.40
  6. Step 6: Final answer
    x = 17,479.80

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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.