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Finding the Fourth Proportional to 56,510.57, 84,706.77 and 19,057.70

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Solution

The fourth proportional to 56,510.57, 84,706.77 and 19,057.70 is: 28,566.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,510.57 : 84,706.77 = 19,057.70 : x
  2. Step 2: Convert to fraction form
    56,510.57/84,706.77 = 19,057.70/x
  3. Step 3: Cross multiply
    56,510.57x = 84,706.77 × 19,057.70
  4. Step 4: Simplify right side
    56,510.57x = 1,614,316,210.63
  5. Step 5: Solve for x
    x = 1,614,316,210.63/56,510.57
  6. Step 6: Final answer
    x = 28,566.62

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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.