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Finding the Fourth Proportional to 98,015.39, 147,005.46 and 25,968.80

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Solution

The fourth proportional to 98,015.39, 147,005.46 and 25,968.80 is: 38,948.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,015.39 : 147,005.46 = 25,968.80 : x
  2. Step 2: Convert to fraction form
    98,015.39/147,005.46 = 25,968.80/x
  3. Step 3: Cross multiply
    98,015.39x = 147,005.46 × 25,968.80
  4. Step 4: Simplify right side
    98,015.39x = 3,817,555,389.65
  5. Step 5: Solve for x
    x = 3,817,555,389.65/98,015.39
  6. Step 6: Final answer
    x = 38,948.53

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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.