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Finding the Fourth Proportional to 52,587.80, 78,834.91 and 19,300.24

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Solution

The fourth proportional to 52,587.80, 78,834.91 and 19,300.24 is: 28,933.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,587.80 : 78,834.91 = 19,300.24 : x
  2. Step 2: Convert to fraction form
    52,587.80/78,834.91 = 19,300.24/x
  3. Step 3: Cross multiply
    52,587.80x = 78,834.91 × 19,300.24
  4. Step 4: Simplify right side
    52,587.80x = 1,521,532,683.38
  5. Step 5: Solve for x
    x = 1,521,532,683.38/52,587.80
  6. Step 6: Final answer
    x = 28,933.19

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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.