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Finding the Fourth Proportional to 21,840.90, 32,733.93 and 9,346.23

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Solution

The fourth proportional to 21,840.90, 32,733.93 and 9,346.23 is: 14,007.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,840.90 : 32,733.93 = 9,346.23 : x
  2. Step 2: Convert to fraction form
    21,840.90/32,733.93 = 9,346.23/x
  3. Step 3: Cross multiply
    21,840.90x = 32,733.93 × 9,346.23
  4. Step 4: Simplify right side
    21,840.90x = 305,938,838.58
  5. Step 5: Solve for x
    x = 305,938,838.58/21,840.90
  6. Step 6: Final answer
    x = 14,007.61

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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.