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Finding the Fourth Proportional to 71,444.44, 98,598.90 and 39,619.54

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Solution

The fourth proportional to 71,444.44, 98,598.90 and 39,619.54 is: 54,678.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,444.44 : 98,598.90 = 39,619.54 : x
  2. Step 2: Convert to fraction form
    71,444.44/98,598.90 = 39,619.54/x
  3. Step 3: Cross multiply
    71,444.44x = 98,598.90 × 39,619.54
  4. Step 4: Simplify right side
    71,444.44x = 3,906,443,062.51
  5. Step 5: Solve for x
    x = 3,906,443,062.51/71,444.44
  6. Step 6: Final answer
    x = 54,678.06

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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.