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Finding the Fourth Proportional to 85,976.64, 128,888.01 and 33,373.62

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Solution

The fourth proportional to 85,976.64, 128,888.01 and 33,373.62 is: 50,030.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,976.64 : 128,888.01 = 33,373.62 : x
  2. Step 2: Convert to fraction form
    85,976.64/128,888.01 = 33,373.62/x
  3. Step 3: Cross multiply
    85,976.64x = 128,888.01 × 33,373.62
  4. Step 4: Simplify right side
    85,976.64x = 4,301,459,468.30
  5. Step 5: Solve for x
    x = 4,301,459,468.30/85,976.64
  6. Step 6: Final answer
    x = 50,030.56

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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.