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Finding the Fourth Proportional to 28,941.04, 43,411.56 and 19,078.01

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Solution

The fourth proportional to 28,941.04, 43,411.56 and 19,078.01 is: 28,617.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,941.04 : 43,411.56 = 19,078.01 : x
  2. Step 2: Convert to fraction form
    28,941.04/43,411.56 = 19,078.01/x
  3. Step 3: Cross multiply
    28,941.04x = 43,411.56 × 19,078.01
  4. Step 4: Simplify right side
    28,941.04x = 828,206,441.74
  5. Step 5: Solve for x
    x = 828,206,441.74/28,941.04
  6. Step 6: Final answer
    x = 28,617.02

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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.