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Finding the Fourth Proportional to 14,239.98, 19,657.98 and 8,270.67

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Solution

The fourth proportional to 14,239.98, 19,657.98 and 8,270.67 is: 11,417.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.98 : 19,657.98 = 8,270.67 : x
  2. Step 2: Convert to fraction form
    14,239.98/19,657.98 = 8,270.67/x
  3. Step 3: Cross multiply
    14,239.98x = 19,657.98 × 8,270.67
  4. Step 4: Simplify right side
    14,239.98x = 162,584,665.45
  5. Step 5: Solve for x
    x = 162,584,665.45/14,239.98
  6. Step 6: Final answer
    x = 11,417.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.