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Finding the Fourth Proportional to 14,666.90, 20,240.42 and 7,952.63

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Solution

The fourth proportional to 14,666.90, 20,240.42 and 7,952.63 is: 10,974.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,666.90 : 20,240.42 = 7,952.63 : x
  2. Step 2: Convert to fraction form
    14,666.90/20,240.42 = 7,952.63/x
  3. Step 3: Cross multiply
    14,666.90x = 20,240.42 × 7,952.63
  4. Step 4: Simplify right side
    14,666.90x = 160,964,430.34
  5. Step 5: Solve for x
    x = 160,964,430.34/14,666.90
  6. Step 6: Final answer
    x = 10,974.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.