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Finding the Fourth Proportional to 47,247.68, 70,871.44 and 13,968.16

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Solution

The fourth proportional to 47,247.68, 70,871.44 and 13,968.16 is: 20,952.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,247.68 : 70,871.44 = 13,968.16 : x
  2. Step 2: Convert to fraction form
    47,247.68/70,871.44 = 13,968.16/x
  3. Step 3: Cross multiply
    47,247.68x = 70,871.44 × 13,968.16
  4. Step 4: Simplify right side
    47,247.68x = 989,943,613.35
  5. Step 5: Solve for x
    x = 989,943,613.35/47,247.68
  6. Step 6: Final answer
    x = 20,952.22

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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.