Home / 18,478.20-25,504.48-10,525.13

Finding the Fourth Proportional to 18,478.20, 25,504.48 and 10,525.13

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Solution

The fourth proportional to 18,478.20, 25,504.48 and 10,525.13 is: 14,527.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,478.20 : 25,504.48 = 10,525.13 : x
  2. Step 2: Convert to fraction form
    18,478.20/25,504.48 = 10,525.13/x
  3. Step 3: Cross multiply
    18,478.20x = 25,504.48 × 10,525.13
  4. Step 4: Simplify right side
    18,478.20x = 268,437,967.58
  5. Step 5: Solve for x
    x = 268,437,967.58/18,478.20
  6. Step 6: Final answer
    x = 14,527.28

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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.