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Finding the Fourth Proportional to 51,302.40, 76,960.80 and 16,238.40

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Solution

The fourth proportional to 51,302.40, 76,960.80 and 16,238.40 is: 24,359.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,302.40 : 76,960.80 = 16,238.40 : x
  2. Step 2: Convert to fraction form
    51,302.40/76,960.80 = 16,238.40/x
  3. Step 3: Cross multiply
    51,302.40x = 76,960.80 × 16,238.40
  4. Step 4: Simplify right side
    51,302.40x = 1,249,720,254.72
  5. Step 5: Solve for x
    x = 1,249,720,254.72/51,302.40
  6. Step 6: Final answer
    x = 24,359.88

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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.