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Finding the Fourth Proportional to 22,043.64, 32,855.28 and 20,798.28

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Solution

The fourth proportional to 22,043.64, 32,855.28 and 20,798.28 is: 30,999.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,043.64 : 32,855.28 = 20,798.28 : x
  2. Step 2: Convert to fraction form
    22,043.64/32,855.28 = 20,798.28/x
  3. Step 3: Cross multiply
    22,043.64x = 32,855.28 × 20,798.28
  4. Step 4: Simplify right side
    22,043.64x = 683,333,312.92
  5. Step 5: Solve for x
    x = 683,333,312.92/22,043.64
  6. Step 6: Final answer
    x = 30,999.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.