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Finding the Fourth Proportional to 57,358.80, 86,038.11 and 37,632.69

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Solution

The fourth proportional to 57,358.80, 86,038.11 and 37,632.69 is: 56,448.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,358.80 : 86,038.11 = 37,632.69 : x
  2. Step 2: Convert to fraction form
    57,358.80/86,038.11 = 37,632.69/x
  3. Step 3: Cross multiply
    57,358.80x = 86,038.11 × 37,632.69
  4. Step 4: Simplify right side
    57,358.80x = 3,237,845,521.82
  5. Step 5: Solve for x
    x = 3,237,845,521.82/57,358.80
  6. Step 6: Final answer
    x = 56,448.98

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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.