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Finding the Fourth Proportional to 60,287.93, 90,431.90 and 15,918.26

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Solution

The fourth proportional to 60,287.93, 90,431.90 and 15,918.26 is: 23,877.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,287.93 : 90,431.90 = 15,918.26 : x
  2. Step 2: Convert to fraction form
    60,287.93/90,431.90 = 15,918.26/x
  3. Step 3: Cross multiply
    60,287.93x = 90,431.90 × 15,918.26
  4. Step 4: Simplify right side
    60,287.93x = 1,439,518,496.49
  5. Step 5: Solve for x
    x = 1,439,518,496.49/60,287.93
  6. Step 6: Final answer
    x = 23,877.39

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Similar ratio
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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.