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Finding the Fourth Proportional to 71,056.40, 98,058.88 and 39,226.64

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Solution

The fourth proportional to 71,056.40, 98,058.88 and 39,226.64 is: 54,133.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,056.40 : 98,058.88 = 39,226.64 : x
  2. Step 2: Convert to fraction form
    71,056.40/98,058.88 = 39,226.64/x
  3. Step 3: Cross multiply
    71,056.40x = 98,058.88 × 39,226.64
  4. Step 4: Simplify right side
    71,056.40x = 3,846,520,384.56
  5. Step 5: Solve for x
    x = 3,846,520,384.56/71,056.40
  6. Step 6: Final answer
    x = 54,133.34

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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.