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Finding the Fourth Proportional to 21,595.44, 32,382.09 and 9,898.50

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Solution

The fourth proportional to 21,595.44, 32,382.09 and 9,898.50 is: 14,842.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,595.44 : 32,382.09 = 9,898.50 : x
  2. Step 2: Convert to fraction form
    21,595.44/32,382.09 = 9,898.50/x
  3. Step 3: Cross multiply
    21,595.44x = 32,382.09 × 9,898.50
  4. Step 4: Simplify right side
    21,595.44x = 320,534,117.87
  5. Step 5: Solve for x
    x = 320,534,117.87/21,595.44
  6. Step 6: Final answer
    x = 14,842.68

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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.