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Finding the Fourth Proportional to 14,562.90, 21,860.55 and 8,001.90

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Solution

The fourth proportional to 14,562.90, 21,860.55 and 8,001.90 is: 12,011.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,562.90 : 21,860.55 = 8,001.90 : x
  2. Step 2: Convert to fraction form
    14,562.90/21,860.55 = 8,001.90/x
  3. Step 3: Cross multiply
    14,562.90x = 21,860.55 × 8,001.90
  4. Step 4: Simplify right side
    14,562.90x = 174,925,935.05
  5. Step 5: Solve for x
    x = 174,925,935.05/14,562.90
  6. Step 6: Final answer
    x = 12,011.75

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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.