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Finding the Fourth Proportional to 10,644.93, 14,688.54 and 5,928.30

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Solution

The fourth proportional to 10,644.93, 14,688.54 and 5,928.30 is: 8,180.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,644.93 : 14,688.54 = 5,928.30 : x
  2. Step 2: Convert to fraction form
    10,644.93/14,688.54 = 5,928.30/x
  3. Step 3: Cross multiply
    10,644.93x = 14,688.54 × 5,928.30
  4. Step 4: Simplify right side
    10,644.93x = 87,078,071.68
  5. Step 5: Solve for x
    x = 87,078,071.68/10,644.93
  6. Step 6: Final answer
    x = 8,180.24

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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.