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Finding the Fourth Proportional to 50,765.71, 70,055.81 and 28,104.22

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Solution

The fourth proportional to 50,765.71, 70,055.81 and 28,104.22 is: 38,783.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,765.71 : 70,055.81 = 28,104.22 : x
  2. Step 2: Convert to fraction form
    50,765.71/70,055.81 = 28,104.22/x
  3. Step 3: Cross multiply
    50,765.71x = 70,055.81 × 28,104.22
  4. Step 4: Simplify right side
    50,765.71x = 1,968,863,756.00
  5. Step 5: Solve for x
    x = 1,968,863,756.00/50,765.71
  6. Step 6: Final answer
    x = 38,783.34

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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.