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Finding the Fourth Proportional to 38,476.67, 53,127.86 and 29,509.97

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Solution

The fourth proportional to 38,476.67, 53,127.86 and 29,509.97 is: 40,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,476.67 : 53,127.86 = 29,509.97 : x
  2. Step 2: Convert to fraction form
    38,476.67/53,127.86 = 29,509.97/x
  3. Step 3: Cross multiply
    38,476.67x = 53,127.86 × 29,509.97
  4. Step 4: Simplify right side
    38,476.67x = 1,567,801,141.58
  5. Step 5: Solve for x
    x = 1,567,801,141.58/38,476.67
  6. Step 6: Final answer
    x = 40,746.80

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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.