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Finding the Fourth Proportional to 46,836.60, 70,184.16 and 18,728.88

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Solution

The fourth proportional to 46,836.60, 70,184.16 and 18,728.88 is: 28,065.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,836.60 : 70,184.16 = 18,728.88 : x
  2. Step 2: Convert to fraction form
    46,836.60/70,184.16 = 18,728.88/x
  3. Step 3: Cross multiply
    46,836.60x = 70,184.16 × 18,728.88
  4. Step 4: Simplify right side
    46,836.60x = 1,314,470,710.54
  5. Step 5: Solve for x
    x = 1,314,470,710.54/46,836.60
  6. Step 6: Final answer
    x = 28,065.03

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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.