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Finding the Fourth Proportional to 8,603.66, 11,870.24 and 5,017.80

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Solution

The fourth proportional to 8,603.66, 11,870.24 and 5,017.80 is: 6,922.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.66 : 11,870.24 = 5,017.80 : x
  2. Step 2: Convert to fraction form
    8,603.66/11,870.24 = 5,017.80/x
  3. Step 3: Cross multiply
    8,603.66x = 11,870.24 × 5,017.80
  4. Step 4: Simplify right side
    8,603.66x = 59,562,490.27
  5. Step 5: Solve for x
    x = 59,562,490.27/8,603.66
  6. Step 6: Final answer
    x = 6,922.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.