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Finding the Fourth Proportional to 64,005.80, 96,008.70 and 32,821.16

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Solution

The fourth proportional to 64,005.80, 96,008.70 and 32,821.16 is: 49,231.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,005.80 : 96,008.70 = 32,821.16 : x
  2. Step 2: Convert to fraction form
    64,005.80/96,008.70 = 32,821.16/x
  3. Step 3: Cross multiply
    64,005.80x = 96,008.70 × 32,821.16
  4. Step 4: Simplify right side
    64,005.80x = 3,151,116,904.09
  5. Step 5: Solve for x
    x = 3,151,116,904.09/64,005.80
  6. Step 6: Final answer
    x = 49,231.74

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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.