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Finding the Fourth Proportional to 28,953.52, 43,373.72 and 19,946.05

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Solution

The fourth proportional to 28,953.52, 43,373.72 and 19,946.05 is: 29,880.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,953.52 : 43,373.72 = 19,946.05 : x
  2. Step 2: Convert to fraction form
    28,953.52/43,373.72 = 19,946.05/x
  3. Step 3: Cross multiply
    28,953.52x = 43,373.72 × 19,946.05
  4. Step 4: Simplify right side
    28,953.52x = 865,134,221.49
  5. Step 5: Solve for x
    x = 865,134,221.49/28,953.52
  6. Step 6: Final answer
    x = 29,880.10

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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.