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Finding the Fourth Proportional to 86,000.40, 128,927.03 and 32,662.58

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Solution

The fourth proportional to 86,000.40, 128,927.03 and 32,662.58 is: 48,965.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,000.40 : 128,927.03 = 32,662.58 : x
  2. Step 2: Convert to fraction form
    86,000.40/128,927.03 = 32,662.58/x
  3. Step 3: Cross multiply
    86,000.40x = 128,927.03 × 32,662.58
  4. Step 4: Simplify right side
    86,000.40x = 4,211,088,623.59
  5. Step 5: Solve for x
    x = 4,211,088,623.59/86,000.40
  6. Step 6: Final answer
    x = 48,965.92

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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.