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Finding the Fourth Proportional to 21,550.01, 29,722.14 and 14,748.06

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Solution

The fourth proportional to 21,550.01, 29,722.14 and 14,748.06 is: 20,340.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550.01 : 29,722.14 = 14,748.06 : x
  2. Step 2: Convert to fraction form
    21,550.01/29,722.14 = 14,748.06/x
  3. Step 3: Cross multiply
    21,550.01x = 29,722.14 × 14,748.06
  4. Step 4: Simplify right side
    21,550.01x = 438,343,904.05
  5. Step 5: Solve for x
    x = 438,343,904.05/21,550.01
  6. Step 6: Final answer
    x = 20,340.77

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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.