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Finding the Fourth Proportional to 9,303.92, 12,828.94 and 7,174.64

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Solution

The fourth proportional to 9,303.92, 12,828.94 and 7,174.64 is: 9,892.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,303.92 : 12,828.94 = 7,174.64 : x
  2. Step 2: Convert to fraction form
    9,303.92/12,828.94 = 7,174.64/x
  3. Step 3: Cross multiply
    9,303.92x = 12,828.94 × 7,174.64
  4. Step 4: Simplify right side
    9,303.92x = 92,043,026.08
  5. Step 5: Solve for x
    x = 92,043,026.08/9,303.92
  6. Step 6: Final answer
    x = 9,892.93

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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.