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Finding the Fourth Proportional to 53,189.63, 79,798.11 and 19,910.17

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Solution

The fourth proportional to 53,189.63, 79,798.11 and 19,910.17 is: 29,870.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,189.63 : 79,798.11 = 19,910.17 : x
  2. Step 2: Convert to fraction form
    53,189.63/79,798.11 = 19,910.17/x
  3. Step 3: Cross multiply
    53,189.63x = 79,798.11 × 19,910.17
  4. Step 4: Simplify right side
    53,189.63x = 1,588,793,935.78
  5. Step 5: Solve for x
    x = 1,588,793,935.78/53,189.63
  6. Step 6: Final answer
    x = 29,870.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.