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Finding the Fourth Proportional to 57,810.16, 79,790.88 and 35,144.34

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Solution

The fourth proportional to 57,810.16, 79,790.88 and 35,144.34 is: 48,507.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,810.16 : 79,790.88 = 35,144.34 : x
  2. Step 2: Convert to fraction form
    57,810.16/79,790.88 = 35,144.34/x
  3. Step 3: Cross multiply
    57,810.16x = 79,790.88 × 35,144.34
  4. Step 4: Simplify right side
    57,810.16x = 2,804,198,048.94
  5. Step 5: Solve for x
    x = 2,804,198,048.94/57,810.16
  6. Step 6: Final answer
    x = 48,507.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.