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Finding the Fourth Proportional to 63,420.04, 87,524.64 and 35,128.36

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Solution

The fourth proportional to 63,420.04, 87,524.64 and 35,128.36 is: 48,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,420.04 : 87,524.64 = 35,128.36 : x
  2. Step 2: Convert to fraction form
    63,420.04/87,524.64 = 35,128.36/x
  3. Step 3: Cross multiply
    63,420.04x = 87,524.64 × 35,128.36
  4. Step 4: Simplify right side
    63,420.04x = 3,074,597,062.79
  5. Step 5: Solve for x
    x = 3,074,597,062.79/63,420.04
  6. Step 6: Final answer
    x = 48,479.90

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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.