Home / 18,528.51-25,569.09-10,145.01

Finding the Fourth Proportional to 18,528.51, 25,569.09 and 10,145.01

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Solution

The fourth proportional to 18,528.51, 25,569.09 and 10,145.01 is: 13,999.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,528.51 : 25,569.09 = 10,145.01 : x
  2. Step 2: Convert to fraction form
    18,528.51/25,569.09 = 10,145.01/x
  3. Step 3: Cross multiply
    18,528.51x = 25,569.09 × 10,145.01
  4. Step 4: Simplify right side
    18,528.51x = 259,398,673.74
  5. Step 5: Solve for x
    x = 259,398,673.74/18,528.51
  6. Step 6: Final answer
    x = 13,999.97

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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.