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Finding the Fourth Proportional to 14,686.60, 22,029.90 and 9,740.20

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Solution

The fourth proportional to 14,686.60, 22,029.90 and 9,740.20 is: 14,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,686.60 : 22,029.90 = 9,740.20 : x
  2. Step 2: Convert to fraction form
    14,686.60/22,029.90 = 9,740.20/x
  3. Step 3: Cross multiply
    14,686.60x = 22,029.90 × 9,740.20
  4. Step 4: Simplify right side
    14,686.60x = 214,575,631.98
  5. Step 5: Solve for x
    x = 214,575,631.98/14,686.60
  6. Step 6: Final answer
    x = 14,610.30

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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.