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Finding the Fourth Proportional to 35,903.70, 53,855.94 and 12,530.22

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Solution

The fourth proportional to 35,903.70, 53,855.94 and 12,530.22 is: 18,795.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,903.70 : 53,855.94 = 12,530.22 : x
  2. Step 2: Convert to fraction form
    35,903.70/53,855.94 = 12,530.22/x
  3. Step 3: Cross multiply
    35,903.70x = 53,855.94 × 12,530.22
  4. Step 4: Simplify right side
    35,903.70x = 674,826,776.51
  5. Step 5: Solve for x
    x = 674,826,776.51/35,903.70
  6. Step 6: Final answer
    x = 18,795.47

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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.