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Finding the Fourth Proportional to 38,661.59, 53,378.71 and 29,693.07

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Solution

The fourth proportional to 38,661.59, 53,378.71 and 29,693.07 is: 40,996.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,661.59 : 53,378.71 = 29,693.07 : x
  2. Step 2: Convert to fraction form
    38,661.59/53,378.71 = 29,693.07/x
  3. Step 3: Cross multiply
    38,661.59x = 53,378.71 × 29,693.07
  4. Step 4: Simplify right side
    38,661.59x = 1,584,977,698.31
  5. Step 5: Solve for x
    x = 1,584,977,698.31/38,661.59
  6. Step 6: Final answer
    x = 40,996.18

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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.