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Finding the Fourth Proportional to 7,805.03, 11,678.72 and 4,686.93

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Solution

The fourth proportional to 7,805.03, 11,678.72 and 4,686.93 is: 7,013.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,805.03 : 11,678.72 = 4,686.93 : x
  2. Step 2: Convert to fraction form
    7,805.03/11,678.72 = 4,686.93/x
  3. Step 3: Cross multiply
    7,805.03x = 11,678.72 × 4,686.93
  4. Step 4: Simplify right side
    7,805.03x = 54,737,319.69
  5. Step 5: Solve for x
    x = 54,737,319.69/7,805.03
  6. Step 6: Final answer
    x = 7,013.09

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1.5x scale

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.