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Finding the Fourth Proportional to 60,588.99, 90,884.15 and 21,146.25

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Solution

The fourth proportional to 60,588.99, 90,884.15 and 21,146.25 is: 31,719.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,588.99 : 90,884.15 = 21,146.25 : x
  2. Step 2: Convert to fraction form
    60,588.99/90,884.15 = 21,146.25/x
  3. Step 3: Cross multiply
    60,588.99x = 90,884.15 × 21,146.25
  4. Step 4: Simplify right side
    60,588.99x = 1,921,858,851.21
  5. Step 5: Solve for x
    x = 1,921,858,851.21/60,588.99
  6. Step 6: Final answer
    x = 31,719.61

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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.