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Finding the Fourth Proportional to 53,642.76, 74,025.70 and 29,769.08

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Solution

The fourth proportional to 53,642.76, 74,025.70 and 29,769.08 is: 41,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,642.76 : 74,025.70 = 29,769.08 : x
  2. Step 2: Convert to fraction form
    53,642.76/74,025.70 = 29,769.08/x
  3. Step 3: Cross multiply
    53,642.76x = 74,025.70 × 29,769.08
  4. Step 4: Simplify right side
    53,642.76x = 2,203,676,985.36
  5. Step 5: Solve for x
    x = 2,203,676,985.36/53,642.76
  6. Step 6: Final answer
    x = 41,080.60

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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.