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Finding the Fourth Proportional to 52,603.92, 72,590.68 and 28,725.93

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Solution

The fourth proportional to 52,603.92, 72,590.68 and 28,725.93 is: 39,640.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,603.92 : 72,590.68 = 28,725.93 : x
  2. Step 2: Convert to fraction form
    52,603.92/72,590.68 = 28,725.93/x
  3. Step 3: Cross multiply
    52,603.92x = 72,590.68 × 28,725.93
  4. Step 4: Simplify right side
    52,603.92x = 2,085,234,648.70
  5. Step 5: Solve for x
    x = 2,085,234,648.70/52,603.92
  6. Step 6: Final answer
    x = 39,640.29

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1.5x scale

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.