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Finding the Fourth Proportional to 35,861.80, 53,799.90 and 10,903.40

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Solution

The fourth proportional to 35,861.80, 53,799.90 and 10,903.40 is: 16,357.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,861.80 : 53,799.90 = 10,903.40 : x
  2. Step 2: Convert to fraction form
    35,861.80/53,799.90 = 10,903.40/x
  3. Step 3: Cross multiply
    35,861.80x = 53,799.90 × 10,903.40
  4. Step 4: Simplify right side
    35,861.80x = 586,601,829.66
  5. Step 5: Solve for x
    x = 586,601,829.66/35,861.80
  6. Step 6: Final answer
    x = 16,357.29

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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.