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Finding the Fourth Proportional to 35,149.32, 48,510.54 and 20,047.32

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Solution

The fourth proportional to 35,149.32, 48,510.54 and 20,047.32 is: 27,667.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,149.32 : 48,510.54 = 20,047.32 : x
  2. Step 2: Convert to fraction form
    35,149.32/48,510.54 = 20,047.32/x
  3. Step 3: Cross multiply
    35,149.32x = 48,510.54 × 20,047.32
  4. Step 4: Simplify right side
    35,149.32x = 972,506,318.75
  5. Step 5: Solve for x
    x = 972,506,318.75/35,149.32
  6. Step 6: Final answer
    x = 27,667.86

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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.