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Finding the Fourth Proportional to 84,551.45, 126,846.61 and 25,388.24

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Solution

The fourth proportional to 84,551.45, 126,846.61 and 25,388.24 is: 38,088.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,551.45 : 126,846.61 = 25,388.24 : x
  2. Step 2: Convert to fraction form
    84,551.45/126,846.61 = 25,388.24/x
  3. Step 3: Cross multiply
    84,551.45x = 126,846.61 × 25,388.24
  4. Step 4: Simplify right side
    84,551.45x = 3,220,411,480.16
  5. Step 5: Solve for x
    x = 3,220,411,480.16/84,551.45
  6. Step 6: Final answer
    x = 38,088.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.