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Finding the Fourth Proportional to 63,702.45, 87,908.90 and 35,021.97

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Solution

The fourth proportional to 63,702.45, 87,908.90 and 35,021.97 is: 48,330.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,702.45 : 87,908.90 = 35,021.97 : x
  2. Step 2: Convert to fraction form
    63,702.45/87,908.90 = 35,021.97/x
  3. Step 3: Cross multiply
    63,702.45x = 87,908.90 × 35,021.97
  4. Step 4: Simplify right side
    63,702.45x = 3,078,742,683.42
  5. Step 5: Solve for x
    x = 3,078,742,683.42/63,702.45
  6. Step 6: Final answer
    x = 48,330.05

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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.