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Finding the Fourth Proportional to 52,668.79, 72,683.15 and 28,795.45

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Solution

The fourth proportional to 52,668.79, 72,683.15 and 28,795.45 is: 39,737.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,668.79 : 72,683.15 = 28,795.45 : x
  2. Step 2: Convert to fraction form
    52,668.79/72,683.15 = 28,795.45/x
  3. Step 3: Cross multiply
    52,668.79x = 72,683.15 × 28,795.45
  4. Step 4: Simplify right side
    52,668.79x = 2,092,944,011.67
  5. Step 5: Solve for x
    x = 2,092,944,011.67/52,668.79
  6. Step 6: Final answer
    x = 39,737.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.