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Finding the Fourth Proportional to 14,006.61, 21,011.13 and 4,644.63

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Solution

The fourth proportional to 14,006.61, 21,011.13 and 4,644.63 is: 6,967.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.61 : 21,011.13 = 4,644.63 : x
  2. Step 2: Convert to fraction form
    14,006.61/21,011.13 = 4,644.63/x
  3. Step 3: Cross multiply
    14,006.61x = 21,011.13 × 4,644.63
  4. Step 4: Simplify right side
    14,006.61x = 97,588,924.73
  5. Step 5: Solve for x
    x = 97,588,924.73/14,006.61
  6. Step 6: Final answer
    x = 6,967.35

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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.