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Finding the Fourth Proportional to 35,903.46, 53,866.17 and 18,385.68

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Solution

The fourth proportional to 35,903.46, 53,866.17 and 18,385.68 is: 27,584.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,903.46 : 53,866.17 = 18,385.68 : x
  2. Step 2: Convert to fraction form
    35,903.46/53,866.17 = 18,385.68/x
  3. Step 3: Cross multiply
    35,903.46x = 53,866.17 × 18,385.68
  4. Step 4: Simplify right side
    35,903.46x = 990,366,164.45
  5. Step 5: Solve for x
    x = 990,366,164.45/35,903.46
  6. Step 6: Final answer
    x = 27,584.14

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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.