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Finding the Fourth Proportional to 9,333, 12,879.58 and 5,141.16

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Solution

The fourth proportional to 9,333, 12,879.58 and 5,141.16 is: 7,094.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,333 : 12,879.58 = 5,141.16 : x
  2. Step 2: Convert to fraction form
    9,333/12,879.58 = 5,141.16/x
  3. Step 3: Cross multiply
    9,333x = 12,879.58 × 5,141.16
  4. Step 4: Simplify right side
    9,333x = 66,215,981.51
  5. Step 5: Solve for x
    x = 66,215,981.51/9,333
  6. Step 6: Final answer
    x = 7,094.82

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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.