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Finding the Fourth Proportional to 38,483.64, 57,680.64 and 16,289.64

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Solution

The fourth proportional to 38,483.64, 57,680.64 and 16,289.64 is: 24,415.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,483.64 : 57,680.64 = 16,289.64 : x
  2. Step 2: Convert to fraction form
    38,483.64/57,680.64 = 16,289.64/x
  3. Step 3: Cross multiply
    38,483.64x = 57,680.64 × 16,289.64
  4. Step 4: Simplify right side
    38,483.64x = 939,596,860.57
  5. Step 5: Solve for x
    x = 939,596,860.57/38,483.64
  6. Step 6: Final answer
    x = 24,415.49

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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.