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Finding the Fourth Proportional to 14,895.70, 22,335.91 and 7,879.50

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Solution

The fourth proportional to 14,895.70, 22,335.91 and 7,879.50 is: 11,815.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,895.70 : 22,335.91 = 7,879.50 : x
  2. Step 2: Convert to fraction form
    14,895.70/22,335.91 = 7,879.50/x
  3. Step 3: Cross multiply
    14,895.70x = 22,335.91 × 7,879.50
  4. Step 4: Simplify right side
    14,895.70x = 175,995,802.85
  5. Step 5: Solve for x
    x = 175,995,802.85/14,895.70
  6. Step 6: Final answer
    x = 11,815.21

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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.