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Finding the Fourth Proportional to 48,297.40, 72,449.70 and 17,128.60

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Solution

The fourth proportional to 48,297.40, 72,449.70 and 17,128.60 is: 25,694.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,297.40 : 72,449.70 = 17,128.60 : x
  2. Step 2: Convert to fraction form
    48,297.40/72,449.70 = 17,128.60/x
  3. Step 3: Cross multiply
    48,297.40x = 72,449.70 × 17,128.60
  4. Step 4: Simplify right side
    48,297.40x = 1,240,961,931.42
  5. Step 5: Solve for x
    x = 1,240,961,931.42/48,297.40
  6. Step 6: Final answer
    x = 25,694.18

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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.