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Finding the Fourth Proportional to 53,667.70, 74,061.74 and 29,469.70

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Solution

The fourth proportional to 53,667.70, 74,061.74 and 29,469.70 is: 40,668.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,667.70 : 74,061.74 = 29,469.70 : x
  2. Step 2: Convert to fraction form
    53,667.70/74,061.74 = 29,469.70/x
  3. Step 3: Cross multiply
    53,667.70x = 74,061.74 × 29,469.70
  4. Step 4: Simplify right side
    53,667.70x = 2,182,577,259.28
  5. Step 5: Solve for x
    x = 2,182,577,259.28/53,667.70
  6. Step 6: Final answer
    x = 40,668.36

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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.