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Finding the Fourth Proportional to 63,045.12, 87,014.64 and 36,205.68

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Solution

The fourth proportional to 63,045.12, 87,014.64 and 36,205.68 is: 49,970.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,045.12 : 87,014.64 = 36,205.68 : x
  2. Step 2: Convert to fraction form
    63,045.12/87,014.64 = 36,205.68/x
  3. Step 3: Cross multiply
    63,045.12x = 87,014.64 × 36,205.68
  4. Step 4: Simplify right side
    63,045.12x = 3,150,424,211.16
  5. Step 5: Solve for x
    x = 3,150,424,211.16/63,045.12
  6. Step 6: Final answer
    x = 49,970.94

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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.