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Finding the Fourth Proportional to 55,987.25, 83,982.50 and 14,434.25

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Solution

The fourth proportional to 55,987.25, 83,982.50 and 14,434.25 is: 21,651.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,987.25 : 83,982.50 = 14,434.25 : x
  2. Step 2: Convert to fraction form
    55,987.25/83,982.50 = 14,434.25/x
  3. Step 3: Cross multiply
    55,987.25x = 83,982.50 × 14,434.25
  4. Step 4: Simplify right side
    55,987.25x = 1,212,224,328.45
  5. Step 5: Solve for x
    x = 1,212,224,328.45/55,987.25
  6. Step 6: Final answer
    x = 21,651.79

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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.