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Finding the Fourth Proportional to 28,236.99, 38,962.04 and 17,624.91

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Solution

The fourth proportional to 28,236.99, 38,962.04 and 17,624.91 is: 24,319.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.99 : 38,962.04 = 17,624.91 : x
  2. Step 2: Convert to fraction form
    28,236.99/38,962.04 = 17,624.91/x
  3. Step 3: Cross multiply
    28,236.99x = 38,962.04 × 17,624.91
  4. Step 4: Simplify right side
    28,236.99x = 686,702,360.29
  5. Step 5: Solve for x
    x = 686,702,360.29/28,236.99
  6. Step 6: Final answer
    x = 24,319.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.