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Finding the Fourth Proportional to 58,559.80, 87,848.22 and 19,107.20

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Solution

The fourth proportional to 58,559.80, 87,848.22 and 19,107.20 is: 28,663.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,559.80 : 87,848.22 = 19,107.20 : x
  2. Step 2: Convert to fraction form
    58,559.80/87,848.22 = 19,107.20/x
  3. Step 3: Cross multiply
    58,559.80x = 87,848.22 × 19,107.20
  4. Step 4: Simplify right side
    58,559.80x = 1,678,533,509.18
  5. Step 5: Solve for x
    x = 1,678,533,509.18/58,559.80
  6. Step 6: Final answer
    x = 28,663.58

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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.