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Finding the Fourth Proportional to 14,400.59, 21,606.62 and 7,004.21

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Solution

The fourth proportional to 14,400.59, 21,606.62 and 7,004.21 is: 10,509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,400.59 : 21,606.62 = 7,004.21 : x
  2. Step 2: Convert to fraction form
    14,400.59/21,606.62 = 7,004.21/x
  3. Step 3: Cross multiply
    14,400.59x = 21,606.62 × 7,004.21
  4. Step 4: Simplify right side
    14,400.59x = 151,337,160.82
  5. Step 5: Solve for x
    x = 151,337,160.82/14,400.59
  6. Step 6: Final answer
    x = 10,509.10

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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.