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Finding the Fourth Proportional to 48,613.65, 72,938.70 and 19,052.70

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Solution

The fourth proportional to 48,613.65, 72,938.70 and 19,052.70 is: 28,586.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,613.65 : 72,938.70 = 19,052.70 : x
  2. Step 2: Convert to fraction form
    48,613.65/72,938.70 = 19,052.70/x
  3. Step 3: Cross multiply
    48,613.65x = 72,938.70 × 19,052.70
  4. Step 4: Simplify right side
    48,613.65x = 1,389,679,169.49
  5. Step 5: Solve for x
    x = 1,389,679,169.49/48,613.65
  6. Step 6: Final answer
    x = 28,586.19

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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.