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Finding the Fourth Proportional to 18,907, 26,091.66 and 10,523.32

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Solution

The fourth proportional to 18,907, 26,091.66 and 10,523.32 is: 14,522.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907 : 26,091.66 = 10,523.32 : x
  2. Step 2: Convert to fraction form
    18,907/26,091.66 = 10,523.32/x
  3. Step 3: Cross multiply
    18,907x = 26,091.66 × 10,523.32
  4. Step 4: Simplify right side
    18,907x = 274,570,887.51
  5. Step 5: Solve for x
    x = 274,570,887.51/18,907
  6. Step 6: Final answer
    x = 14,522.18

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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.