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Finding the Fourth Proportional to 55,699.40, 83,549.10 and 36,000.20

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Solution

The fourth proportional to 55,699.40, 83,549.10 and 36,000.20 is: 54,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,699.40 : 83,549.10 = 36,000.20 : x
  2. Step 2: Convert to fraction form
    55,699.40/83,549.10 = 36,000.20/x
  3. Step 3: Cross multiply
    55,699.40x = 83,549.10 × 36,000.20
  4. Step 4: Simplify right side
    55,699.40x = 3,007,784,309.82
  5. Step 5: Solve for x
    x = 3,007,784,309.82/55,699.40
  6. Step 6: Final answer
    x = 54,000.30

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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.