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Finding the Fourth Proportional to 51,675.98, 77,515.83 and 14,238.98

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Solution

The fourth proportional to 51,675.98, 77,515.83 and 14,238.98 is: 21,358.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,675.98 : 77,515.83 = 14,238.98 : x
  2. Step 2: Convert to fraction form
    51,675.98/77,515.83 = 14,238.98/x
  3. Step 3: Cross multiply
    51,675.98x = 77,515.83 × 14,238.98
  4. Step 4: Simplify right side
    51,675.98x = 1,103,746,353.05
  5. Step 5: Solve for x
    x = 1,103,746,353.05/51,675.98
  6. Step 6: Final answer
    x = 21,358.98

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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.