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Finding the Fourth Proportional to 18,505.98, 25,537.14 and 10,549.08

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Solution

The fourth proportional to 18,505.98, 25,537.14 and 10,549.08 is: 14,557.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,505.98 : 25,537.14 = 10,549.08 : x
  2. Step 2: Convert to fraction form
    18,505.98/25,537.14 = 10,549.08/x
  3. Step 3: Cross multiply
    18,505.98x = 25,537.14 × 10,549.08
  4. Step 4: Simplify right side
    18,505.98x = 269,393,332.83
  5. Step 5: Solve for x
    x = 269,393,332.83/18,505.98
  6. Step 6: Final answer
    x = 14,557.10

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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.