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Finding the Fourth Proportional to 9,646.40, 14,457 and 5,262.68

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Solution

The fourth proportional to 9,646.40, 14,457 and 5,262.68 is: 7,887.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,646.40 : 14,457 = 5,262.68 : x
  2. Step 2: Convert to fraction form
    9,646.40/14,457 = 5,262.68/x
  3. Step 3: Cross multiply
    9,646.40x = 14,457 × 5,262.68
  4. Step 4: Simplify right side
    9,646.40x = 76,082,564.76
  5. Step 5: Solve for x
    x = 76,082,564.76/9,646.40
  6. Step 6: Final answer
    x = 7,887.15

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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.