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Finding the Fourth Proportional to 85,588.54, 128,383.14 and 23,259.04

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Solution

The fourth proportional to 85,588.54, 128,383.14 and 23,259.04 is: 34,888.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,588.54 : 128,383.14 = 23,259.04 : x
  2. Step 2: Convert to fraction form
    85,588.54/128,383.14 = 23,259.04/x
  3. Step 3: Cross multiply
    85,588.54x = 128,383.14 × 23,259.04
  4. Step 4: Simplify right side
    85,588.54x = 2,986,068,588.59
  5. Step 5: Solve for x
    x = 2,986,068,588.59/85,588.54
  6. Step 6: Final answer
    x = 34,888.65

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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.