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Finding the Fourth Proportional to 8,703.16, 13,041.78 and 4,808.68

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Solution

The fourth proportional to 8,703.16, 13,041.78 and 4,808.68 is: 7,205.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,703.16 : 13,041.78 = 4,808.68 : x
  2. Step 2: Convert to fraction form
    8,703.16/13,041.78 = 4,808.68/x
  3. Step 3: Cross multiply
    8,703.16x = 13,041.78 × 4,808.68
  4. Step 4: Simplify right side
    8,703.16x = 62,713,746.65
  5. Step 5: Solve for x
    x = 62,713,746.65/8,703.16
  6. Step 6: Final answer
    x = 7,205.86

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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.