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Finding the Fourth Proportional to 55,915.40, 83,873.10 and 36,216.20

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Solution

The fourth proportional to 55,915.40, 83,873.10 and 36,216.20 is: 54,324.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,915.40 : 83,873.10 = 36,216.20 : x
  2. Step 2: Convert to fraction form
    55,915.40/83,873.10 = 36,216.20/x
  3. Step 3: Cross multiply
    55,915.40x = 83,873.10 × 36,216.20
  4. Step 4: Simplify right side
    55,915.40x = 3,037,564,964.22
  5. Step 5: Solve for x
    x = 3,037,564,964.22/55,915.40
  6. Step 6: Final answer
    x = 54,324.30

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1.5x scale

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.