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Finding the Fourth Proportional to 14,996.40, 22,510.80 and 8,435.40

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Solution

The fourth proportional to 14,996.40, 22,510.80 and 8,435.40 is: 12,662.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,996.40 : 22,510.80 = 8,435.40 : x
  2. Step 2: Convert to fraction form
    14,996.40/22,510.80 = 8,435.40/x
  3. Step 3: Cross multiply
    14,996.40x = 22,510.80 × 8,435.40
  4. Step 4: Simplify right side
    14,996.40x = 189,887,602.32
  5. Step 5: Solve for x
    x = 189,887,602.32/14,996.40
  6. Step 6: Final answer
    x = 12,662.21

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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.