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Finding the Fourth Proportional to 48,009.78, 72,040.53 and 23,385.78

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Solution

The fourth proportional to 48,009.78, 72,040.53 and 23,385.78 is: 35,091.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,009.78 : 72,040.53 = 23,385.78 : x
  2. Step 2: Convert to fraction form
    48,009.78/72,040.53 = 23,385.78/x
  3. Step 3: Cross multiply
    48,009.78x = 72,040.53 × 23,385.78
  4. Step 4: Simplify right side
    48,009.78x = 1,684,723,985.66
  5. Step 5: Solve for x
    x = 1,684,723,985.66/48,009.78
  6. Step 6: Final answer
    x = 35,091.27

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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.