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Finding the Fourth Proportional to 70,799.19, 106,199.07 and 28,680.08

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Solution

The fourth proportional to 70,799.19, 106,199.07 and 28,680.08 is: 43,020.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,799.19 : 106,199.07 = 28,680.08 : x
  2. Step 2: Convert to fraction form
    70,799.19/106,199.07 = 28,680.08/x
  3. Step 3: Cross multiply
    70,799.19x = 106,199.07 × 28,680.08
  4. Step 4: Simplify right side
    70,799.19x = 3,045,797,590.48
  5. Step 5: Solve for x
    x = 3,045,797,590.48/70,799.19
  6. Step 6: Final answer
    x = 43,020.23

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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.