Home / 25,447.64-38,186.33-10,655.28

Finding the Fourth Proportional to 25,447.64, 38,186.33 and 10,655.28

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Solution

The fourth proportional to 25,447.64, 38,186.33 and 10,655.28 is: 15,989.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,447.64 : 38,186.33 = 10,655.28 : x
  2. Step 2: Convert to fraction form
    25,447.64/38,186.33 = 10,655.28/x
  3. Step 3: Cross multiply
    25,447.64x = 38,186.33 × 10,655.28
  4. Step 4: Simplify right side
    25,447.64x = 406,885,985.05
  5. Step 5: Solve for x
    x = 406,885,985.05/25,447.64
  6. Step 6: Final answer
    x = 15,989.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.