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Finding the Fourth Proportional to 64,004.55, 95,878.19 and 31,886.80

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Solution

The fourth proportional to 64,004.55, 95,878.19 and 31,886.80 is: 47,766.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,004.55 : 95,878.19 = 31,886.80 : x
  2. Step 2: Convert to fraction form
    64,004.55/95,878.19 = 31,886.80/x
  3. Step 3: Cross multiply
    64,004.55x = 95,878.19 × 31,886.80
  4. Step 4: Simplify right side
    64,004.55x = 3,057,248,958.24
  5. Step 5: Solve for x
    x = 3,057,248,958.24/64,004.55
  6. Step 6: Final answer
    x = 47,766.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.