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Finding the Fourth Proportional to 63,157.70, 87,157.45 and 34,863.19

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Solution

The fourth proportional to 63,157.70, 87,157.45 and 34,863.19 is: 48,111.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,157.70 : 87,157.45 = 34,863.19 : x
  2. Step 2: Convert to fraction form
    63,157.70/87,157.45 = 34,863.19/x
  3. Step 3: Cross multiply
    63,157.70x = 87,157.45 × 34,863.19
  4. Step 4: Simplify right side
    63,157.70x = 3,038,586,739.27
  5. Step 5: Solve for x
    x = 3,038,586,739.27/63,157.70
  6. Step 6: Final answer
    x = 48,111.11

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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.