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Finding the Fourth Proportional to 52,986.70, 79,430.64 and 17,901.82

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Solution

The fourth proportional to 52,986.70, 79,430.64 and 17,901.82 is: 26,836.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,986.70 : 79,430.64 = 17,901.82 : x
  2. Step 2: Convert to fraction form
    52,986.70/79,430.64 = 17,901.82/x
  3. Step 3: Cross multiply
    52,986.70x = 79,430.64 × 17,901.82
  4. Step 4: Simplify right side
    52,986.70x = 1,421,953,019.76
  5. Step 5: Solve for x
    x = 1,421,953,019.76/52,986.70
  6. Step 6: Final answer
    x = 26,836.04

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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.