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Finding the Fourth Proportional to 18,506.72, 25,539.01 and 10,549.07

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Solution

The fourth proportional to 18,506.72, 25,539.01 and 10,549.07 is: 14,557.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,506.72 : 25,539.01 = 10,549.07 : x
  2. Step 2: Convert to fraction form
    18,506.72/25,539.01 = 10,549.07/x
  3. Step 3: Cross multiply
    18,506.72x = 25,539.01 × 10,549.07
  4. Step 4: Simplify right side
    18,506.72x = 269,412,804.22
  5. Step 5: Solve for x
    x = 269,412,804.22/18,506.72
  6. Step 6: Final answer
    x = 14,557.57

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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.