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Finding the Fourth Proportional to 35,803.80, 53,705.70 and 20,057.40

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Solution

The fourth proportional to 35,803.80, 53,705.70 and 20,057.40 is: 30,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,803.80 : 53,705.70 = 20,057.40 : x
  2. Step 2: Convert to fraction form
    35,803.80/53,705.70 = 20,057.40/x
  3. Step 3: Cross multiply
    35,803.80x = 53,705.70 × 20,057.40
  4. Step 4: Simplify right side
    35,803.80x = 1,077,196,707.18
  5. Step 5: Solve for x
    x = 1,077,196,707.18/35,803.80
  6. Step 6: Final answer
    x = 30,086.10

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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.