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Finding the Fourth Proportional to 38,487.64, 57,686.64 and 16,293.64

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Solution

The fourth proportional to 38,487.64, 57,686.64 and 16,293.64 is: 24,421.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,487.64 : 57,686.64 = 16,293.64 : x
  2. Step 2: Convert to fraction form
    38,487.64/57,686.64 = 16,293.64/x
  3. Step 3: Cross multiply
    38,487.64x = 57,686.64 × 16,293.64
  4. Step 4: Simplify right side
    38,487.64x = 939,925,344.97
  5. Step 5: Solve for x
    x = 939,925,344.97/38,487.64
  6. Step 6: Final answer
    x = 24,421.49

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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.