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Finding the Fourth Proportional to 14,303.26, 19,738.86 and 7,930.18

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Solution

The fourth proportional to 14,303.26, 19,738.86 and 7,930.18 is: 10,943.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,303.26 : 19,738.86 = 7,930.18 : x
  2. Step 2: Convert to fraction form
    14,303.26/19,738.86 = 7,930.18/x
  3. Step 3: Cross multiply
    14,303.26x = 19,738.86 × 7,930.18
  4. Step 4: Simplify right side
    14,303.26x = 156,532,712.79
  5. Step 5: Solve for x
    x = 156,532,712.79/14,303.26
  6. Step 6: Final answer
    x = 10,943.85

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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.