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Finding the Fourth Proportional to 100,547.67, 150,821.37 and 25,667.82

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Solution

The fourth proportional to 100,547.67, 150,821.37 and 25,667.82 is: 38,501.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,547.67 : 150,821.37 = 25,667.82 : x
  2. Step 2: Convert to fraction form
    100,547.67/150,821.37 = 25,667.82/x
  3. Step 3: Cross multiply
    100,547.67x = 150,821.37 × 25,667.82
  4. Step 4: Simplify right side
    100,547.67x = 3,871,255,777.31
  5. Step 5: Solve for x
    x = 3,871,255,777.31/100,547.67
  6. Step 6: Final answer
    x = 38,501.69

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1.5x scale

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.