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Finding the Fourth Proportional to 14,174.70, 21,262.06 and 6,374.40

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Solution

The fourth proportional to 14,174.70, 21,262.06 and 6,374.40 is: 9,561.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,174.70 : 21,262.06 = 6,374.40 : x
  2. Step 2: Convert to fraction form
    14,174.70/21,262.06 = 6,374.40/x
  3. Step 3: Cross multiply
    14,174.70x = 21,262.06 × 6,374.40
  4. Step 4: Simplify right side
    14,174.70x = 135,532,875.26
  5. Step 5: Solve for x
    x = 135,532,875.26/14,174.70
  6. Step 6: Final answer
    x = 9,561.60

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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.