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Finding the Fourth Proportional to 57,638.99, 86,457.88 and 14,944.20

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Solution

The fourth proportional to 57,638.99, 86,457.88 and 14,944.20 is: 22,416.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,638.99 : 86,457.88 = 14,944.20 : x
  2. Step 2: Convert to fraction form
    57,638.99/86,457.88 = 14,944.20/x
  3. Step 3: Cross multiply
    57,638.99x = 86,457.88 × 14,944.20
  4. Step 4: Simplify right side
    57,638.99x = 1,292,043,544.76
  5. Step 5: Solve for x
    x = 1,292,043,544.76/57,638.99
  6. Step 6: Final answer
    x = 22,416.14

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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.