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Finding the Fourth Proportional to 18,496.86, 25,525.71 and 10,113.90

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Solution

The fourth proportional to 18,496.86, 25,525.71 and 10,113.90 is: 13,957.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,496.86 : 25,525.71 = 10,113.90 : x
  2. Step 2: Convert to fraction form
    18,496.86/25,525.71 = 10,113.90/x
  3. Step 3: Cross multiply
    18,496.86x = 25,525.71 × 10,113.90
  4. Step 4: Simplify right side
    18,496.86x = 258,164,478.37
  5. Step 5: Solve for x
    x = 258,164,478.37/18,496.86
  6. Step 6: Final answer
    x = 13,957.21

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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.