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Finding the Fourth Proportional to 60,880.50, 84,009.20 and 38,212.25

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Solution

The fourth proportional to 60,880.50, 84,009.20 and 38,212.25 is: 52,729.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,880.50 : 84,009.20 = 38,212.25 : x
  2. Step 2: Convert to fraction form
    60,880.50/84,009.20 = 38,212.25/x
  3. Step 3: Cross multiply
    60,880.50x = 84,009.20 × 38,212.25
  4. Step 4: Simplify right side
    60,880.50x = 3,210,179,941.59
  5. Step 5: Solve for x
    x = 3,210,179,941.59/60,880.50
  6. Step 6: Final answer
    x = 52,729.20

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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.