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Finding the Fourth Proportional to 58,187.30, 87,294.65 and 18,743.00

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Solution

The fourth proportional to 58,187.30, 87,294.65 and 18,743.00 is: 28,118.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,187.30 : 87,294.65 = 18,743.00 : x
  2. Step 2: Convert to fraction form
    58,187.30/87,294.65 = 18,743.00/x
  3. Step 3: Cross multiply
    58,187.30x = 87,294.65 × 18,743.00
  4. Step 4: Simplify right side
    58,187.30x = 1,636,163,094.76
  5. Step 5: Solve for x
    x = 1,636,163,094.76/58,187.30
  6. Step 6: Final answer
    x = 28,118.91

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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.