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Finding the Fourth Proportional to 64,195.32, 96,315.76 and 28,653.42

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Solution

The fourth proportional to 64,195.32, 96,315.76 and 28,653.42 is: 42,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,195.32 : 96,315.76 = 28,653.42 : x
  2. Step 2: Convert to fraction form
    64,195.32/96,315.76 = 28,653.42/x
  3. Step 3: Cross multiply
    64,195.32x = 96,315.76 × 28,653.42
  4. Step 4: Simplify right side
    64,195.32x = 2,759,775,923.90
  5. Step 5: Solve for x
    x = 2,759,775,923.90/64,195.32
  6. Step 6: Final answer
    x = 42,990.30

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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.