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Finding the Fourth Proportional to 60,759.79, 83,838.45 and 40,584.31

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Solution

The fourth proportional to 60,759.79, 83,838.45 and 40,584.31 is: 55,999.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,759.79 : 83,838.45 = 40,584.31 : x
  2. Step 2: Convert to fraction form
    60,759.79/83,838.45 = 40,584.31/x
  3. Step 3: Cross multiply
    60,759.79x = 83,838.45 × 40,584.31
  4. Step 4: Simplify right side
    60,759.79x = 3,402,525,644.72
  5. Step 5: Solve for x
    x = 3,402,525,644.72/60,759.79
  6. Step 6: Final answer
    x = 55,999.63

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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.