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Finding the Fourth Proportional to 56,470.93, 84,689.13 and 19,020.96

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Solution

The fourth proportional to 56,470.93, 84,689.13 and 19,020.96 is: 28,525.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,470.93 : 84,689.13 = 19,020.96 : x
  2. Step 2: Convert to fraction form
    56,470.93/84,689.13 = 19,020.96/x
  3. Step 3: Cross multiply
    56,470.93x = 84,689.13 × 19,020.96
  4. Step 4: Simplify right side
    56,470.93x = 1,610,868,554.16
  5. Step 5: Solve for x
    x = 1,610,868,554.16/56,470.93
  6. Step 6: Final answer
    x = 28,525.62

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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.