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Finding the Fourth Proportional to 34,495.80, 47,605.92 and 19,387.68

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Solution

The fourth proportional to 34,495.80, 47,605.92 and 19,387.68 is: 26,755.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,495.80 : 47,605.92 = 19,387.68 : x
  2. Step 2: Convert to fraction form
    34,495.80/47,605.92 = 19,387.68/x
  3. Step 3: Cross multiply
    34,495.80x = 47,605.92 × 19,387.68
  4. Step 4: Simplify right side
    34,495.80x = 922,968,343.07
  5. Step 5: Solve for x
    x = 922,968,343.07/34,495.80
  6. Step 6: Final answer
    x = 26,755.96

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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.