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Finding the Fourth Proportional to 9,930.59, 14,879.48 and 7,002.74

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Solution

The fourth proportional to 9,930.59, 14,879.48 and 7,002.74 is: 10,492.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,930.59 : 14,879.48 = 7,002.74 : x
  2. Step 2: Convert to fraction form
    9,930.59/14,879.48 = 7,002.74/x
  3. Step 3: Cross multiply
    9,930.59x = 14,879.48 × 7,002.74
  4. Step 4: Simplify right side
    9,930.59x = 104,197,129.78
  5. Step 5: Solve for x
    x = 104,197,129.78/9,930.59
  6. Step 6: Final answer
    x = 10,492.54

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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.