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Finding the Fourth Proportional to 5,673.12, 8,510.64 and 1,776.48

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Solution

The fourth proportional to 5,673.12, 8,510.64 and 1,776.48 is: 2,665.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,673.12 : 8,510.64 = 1,776.48 : x
  2. Step 2: Convert to fraction form
    5,673.12/8,510.64 = 1,776.48/x
  3. Step 3: Cross multiply
    5,673.12x = 8,510.64 × 1,776.48
  4. Step 4: Simplify right side
    5,673.12x = 15,118,981.75
  5. Step 5: Solve for x
    x = 15,118,981.75/5,673.12
  6. Step 6: Final answer
    x = 2,665.02

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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.