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Finding the Fourth Proportional to 8,606.04, 11,878.32 and 5,616.60

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Solution

The fourth proportional to 8,606.04, 11,878.32 and 5,616.60 is: 7,752.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.04 : 11,878.32 = 5,616.60 : x
  2. Step 2: Convert to fraction form
    8,606.04/11,878.32 = 5,616.60/x
  3. Step 3: Cross multiply
    8,606.04x = 11,878.32 × 5,616.60
  4. Step 4: Simplify right side
    8,606.04x = 66,715,772.11
  5. Step 5: Solve for x
    x = 66,715,772.11/8,606.04
  6. Step 6: Final answer
    x = 7,752.20

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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.