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Finding the Fourth Proportional to 70,049.79, 96,664.77 and 39,842.46

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Solution

The fourth proportional to 70,049.79, 96,664.77 and 39,842.46 is: 54,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,049.79 : 96,664.77 = 39,842.46 : x
  2. Step 2: Convert to fraction form
    70,049.79/96,664.77 = 39,842.46/x
  3. Step 3: Cross multiply
    70,049.79x = 96,664.77 × 39,842.46
  4. Step 4: Simplify right side
    70,049.79x = 3,851,362,232.13
  5. Step 5: Solve for x
    x = 3,851,362,232.13/70,049.79
  6. Step 6: Final answer
    x = 54,980.35

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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.