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Finding the Fourth Proportional to 7,407.69, 11,110.74 and 2,476.77

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Solution

The fourth proportional to 7,407.69, 11,110.74 and 2,476.77 is: 3,714.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,407.69 : 11,110.74 = 2,476.77 : x
  2. Step 2: Convert to fraction form
    7,407.69/11,110.74 = 2,476.77/x
  3. Step 3: Cross multiply
    7,407.69x = 11,110.74 × 2,476.77
  4. Step 4: Simplify right side
    7,407.69x = 27,518,747.51
  5. Step 5: Solve for x
    x = 27,518,747.51/7,407.69
  6. Step 6: Final answer
    x = 3,714.89

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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.