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Finding the Fourth Proportional to 63,453.70, 87,564.81 and 35,158.78

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Solution

The fourth proportional to 63,453.70, 87,564.81 and 35,158.78 is: 48,518.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,453.70 : 87,564.81 = 35,158.78 : x
  2. Step 2: Convert to fraction form
    63,453.70/87,564.81 = 35,158.78/x
  3. Step 3: Cross multiply
    63,453.70x = 87,564.81 × 35,158.78
  4. Step 4: Simplify right side
    63,453.70x = 3,078,671,890.53
  5. Step 5: Solve for x
    x = 3,078,671,890.53/63,453.70
  6. Step 6: Final answer
    x = 48,518.40

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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.