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Finding the Fourth Proportional to 28,972.49, 43,477.02 and 12,332.50

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Solution

The fourth proportional to 28,972.49, 43,477.02 and 12,332.50 is: 18,506.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,972.49 : 43,477.02 = 12,332.50 : x
  2. Step 2: Convert to fraction form
    28,972.49/43,477.02 = 12,332.50/x
  3. Step 3: Cross multiply
    28,972.49x = 43,477.02 × 12,332.50
  4. Step 4: Simplify right side
    28,972.49x = 536,180,100.93
  5. Step 5: Solve for x
    x = 536,180,100.93/28,972.49
  6. Step 6: Final answer
    x = 18,506.52

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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.