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Finding the Fourth Proportional to 8,328.89, 11,490.93 and 5,346.34

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Solution

The fourth proportional to 8,328.89, 11,490.93 and 5,346.34 is: 7,376.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.89 : 11,490.93 = 5,346.34 : x
  2. Step 2: Convert to fraction form
    8,328.89/11,490.93 = 5,346.34/x
  3. Step 3: Cross multiply
    8,328.89x = 11,490.93 × 5,346.34
  4. Step 4: Simplify right side
    8,328.89x = 61,434,389.97
  5. Step 5: Solve for x
    x = 61,434,389.97/8,328.89
  6. Step 6: Final answer
    x = 7,376.06

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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.