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Finding the Fourth Proportional to 18,483.21, 25,506.90 and 10,525.41

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Solution

The fourth proportional to 18,483.21, 25,506.90 and 10,525.41 is: 14,525.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,483.21 : 25,506.90 = 10,525.41 : x
  2. Step 2: Convert to fraction form
    18,483.21/25,506.90 = 10,525.41/x
  3. Step 3: Cross multiply
    18,483.21x = 25,506.90 × 10,525.41
  4. Step 4: Simplify right side
    18,483.21x = 268,470,580.33
  5. Step 5: Solve for x
    x = 268,470,580.33/18,483.21
  6. Step 6: Final answer
    x = 14,525.11

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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.