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Finding the Fourth Proportional to 71,573.94, 98,777.94 and 39,744.90

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Solution

The fourth proportional to 71,573.94, 98,777.94 and 39,744.90 is: 54,851.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,573.94 : 98,777.94 = 39,744.90 : x
  2. Step 2: Convert to fraction form
    71,573.94/98,777.94 = 39,744.90/x
  3. Step 3: Cross multiply
    71,573.94x = 98,777.94 × 39,744.90
  4. Step 4: Simplify right side
    71,573.94x = 3,925,919,347.51
  5. Step 5: Solve for x
    x = 3,925,919,347.51/71,573.94
  6. Step 6: Final answer
    x = 54,851.24

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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.