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Finding the Fourth Proportional to 51,332.88, 76,992.92 and 14,399.76

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Solution

The fourth proportional to 51,332.88, 76,992.92 and 14,399.76 is: 21,597.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,332.88 : 76,992.92 = 14,399.76 : x
  2. Step 2: Convert to fraction form
    51,332.88/76,992.92 = 14,399.76/x
  3. Step 3: Cross multiply
    51,332.88x = 76,992.92 × 14,399.76
  4. Step 4: Simplify right side
    51,332.88x = 1,108,679,569.70
  5. Step 5: Solve for x
    x = 1,108,679,569.70/51,332.88
  6. Step 6: Final answer
    x = 21,597.84

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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.