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Finding the Fourth Proportional to 35,321.67, 48,745.80 and 19,407.60

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Solution

The fourth proportional to 35,321.67, 48,745.80 and 19,407.60 is: 26,783.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,321.67 : 48,745.80 = 19,407.60 : x
  2. Step 2: Convert to fraction form
    35,321.67/48,745.80 = 19,407.60/x
  3. Step 3: Cross multiply
    35,321.67x = 48,745.80 × 19,407.60
  4. Step 4: Simplify right side
    35,321.67x = 946,038,988.08
  5. Step 5: Solve for x
    x = 946,038,988.08/35,321.67
  6. Step 6: Final answer
    x = 26,783.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.