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Finding the Fourth Proportional to 58,472.80, 87,710 and 19,030.12

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Solution

The fourth proportional to 58,472.80, 87,710 and 19,030.12 is: 28,545.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,472.80 : 87,710 = 19,030.12 : x
  2. Step 2: Convert to fraction form
    58,472.80/87,710 = 19,030.12/x
  3. Step 3: Cross multiply
    58,472.80x = 87,710 × 19,030.12
  4. Step 4: Simplify right side
    58,472.80x = 1,669,131,825.20
  5. Step 5: Solve for x
    x = 1,669,131,825.20/58,472.80
  6. Step 6: Final answer
    x = 28,545.44

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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.