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Finding the Fourth Proportional to 24,290.40, 33,521.40 and 13,679.40

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Solution

The fourth proportional to 24,290.40, 33,521.40 and 13,679.40 is: 18,877.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,290.40 : 33,521.40 = 13,679.40 : x
  2. Step 2: Convert to fraction form
    24,290.40/33,521.40 = 13,679.40/x
  3. Step 3: Cross multiply
    24,290.40x = 33,521.40 × 13,679.40
  4. Step 4: Simplify right side
    24,290.40x = 458,552,639.16
  5. Step 5: Solve for x
    x = 458,552,639.16/24,290.40
  6. Step 6: Final answer
    x = 18,877.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.