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Finding the Fourth Proportional to 36,489.90, 54,730.80 and 29,904.60

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Solution

The fourth proportional to 36,489.90, 54,730.80 and 29,904.60 is: 44,853.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,489.90 : 54,730.80 = 29,904.60 : x
  2. Step 2: Convert to fraction form
    36,489.90/54,730.80 = 29,904.60/x
  3. Step 3: Cross multiply
    36,489.90x = 54,730.80 × 29,904.60
  4. Step 4: Simplify right side
    36,489.90x = 1,636,702,681.68
  5. Step 5: Solve for x
    x = 1,636,702,681.68/36,489.90
  6. Step 6: Final answer
    x = 44,853.58

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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.