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Finding the Fourth Proportional to 8,661.10, 11,952.28 and 4,682.22

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Solution

The fourth proportional to 8,661.10, 11,952.28 and 4,682.22 is: 6,461.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,661.10 : 11,952.28 = 4,682.22 : x
  2. Step 2: Convert to fraction form
    8,661.10/11,952.28 = 4,682.22/x
  3. Step 3: Cross multiply
    8,661.10x = 11,952.28 × 4,682.22
  4. Step 4: Simplify right side
    8,661.10x = 55,963,204.46
  5. Step 5: Solve for x
    x = 55,963,204.46/8,661.10
  6. Step 6: Final answer
    x = 6,461.44

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Half scale
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Double scale
Find fourth proportional to 8,662.10, 11,953.66 and 4,683.22
Similar ratio
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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.