Home / 18,622.89-25,699.73-10,125.05

Finding the Fourth Proportional to 18,622.89, 25,699.73 and 10,125.05

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Solution

The fourth proportional to 18,622.89, 25,699.73 and 10,125.05 is: 13,972.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,622.89 : 25,699.73 = 10,125.05 : x
  2. Step 2: Convert to fraction form
    18,622.89/25,699.73 = 10,125.05/x
  3. Step 3: Cross multiply
    18,622.89x = 25,699.73 × 10,125.05
  4. Step 4: Simplify right side
    18,622.89x = 260,210,872.11
  5. Step 5: Solve for x
    x = 260,210,872.11/18,622.89
  6. Step 6: Final answer
    x = 13,972.64

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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.