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Finding the Fourth Proportional to 64,422.65, 88,903.08 and 36,128.94

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Solution

The fourth proportional to 64,422.65, 88,903.08 and 36,128.94 is: 49,857.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,422.65 : 88,903.08 = 36,128.94 : x
  2. Step 2: Convert to fraction form
    64,422.65/88,903.08 = 36,128.94/x
  3. Step 3: Cross multiply
    64,422.65x = 88,903.08 × 36,128.94
  4. Step 4: Simplify right side
    64,422.65x = 3,211,974,043.14
  5. Step 5: Solve for x
    x = 3,211,974,043.14/64,422.65
  6. Step 6: Final answer
    x = 49,857.84

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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.