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Finding the Fourth Proportional to 14,637.60, 21,940.65 and 6,321.53

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Solution

The fourth proportional to 14,637.60, 21,940.65 and 6,321.53 is: 9,475.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,637.60 : 21,940.65 = 6,321.53 : x
  2. Step 2: Convert to fraction form
    14,637.60/21,940.65 = 6,321.53/x
  3. Step 3: Cross multiply
    14,637.60x = 21,940.65 × 6,321.53
  4. Step 4: Simplify right side
    14,637.60x = 138,698,532.05
  5. Step 5: Solve for x
    x = 138,698,532.05/14,637.60
  6. Step 6: Final answer
    x = 9,475.50

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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.