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Finding the Fourth Proportional to 28,609.62, 42,904.71 and 14,564.22

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Solution

The fourth proportional to 28,609.62, 42,904.71 and 14,564.22 is: 21,841.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,609.62 : 42,904.71 = 14,564.22 : x
  2. Step 2: Convert to fraction form
    28,609.62/42,904.71 = 14,564.22/x
  3. Step 3: Cross multiply
    28,609.62x = 42,904.71 × 14,564.22
  4. Step 4: Simplify right side
    28,609.62x = 624,873,635.48
  5. Step 5: Solve for x
    x = 624,873,635.48/28,609.62
  6. Step 6: Final answer
    x = 21,841.38

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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.