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Finding the Fourth Proportional to 48,615.75, 72,923.63 and 15,783.75

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Solution

The fourth proportional to 48,615.75, 72,923.63 and 15,783.75 is: 23,675.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,615.75 : 72,923.63 = 15,783.75 : x
  2. Step 2: Convert to fraction form
    48,615.75/72,923.63 = 15,783.75/x
  3. Step 3: Cross multiply
    48,615.75x = 72,923.63 × 15,783.75
  4. Step 4: Simplify right side
    48,615.75x = 1,151,008,266.09
  5. Step 5: Solve for x
    x = 1,151,008,266.09/48,615.75
  6. Step 6: Final answer
    x = 23,675.63

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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.