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Finding the Fourth Proportional to 14,487.49, 19,992.05 and 8,897.41

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Solution

The fourth proportional to 14,487.49, 19,992.05 and 8,897.41 is: 12,278.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,487.49 : 19,992.05 = 8,897.41 : x
  2. Step 2: Convert to fraction form
    14,487.49/19,992.05 = 8,897.41/x
  3. Step 3: Cross multiply
    14,487.49x = 19,992.05 × 8,897.41
  4. Step 4: Simplify right side
    14,487.49x = 177,877,421.10
  5. Step 5: Solve for x
    x = 177,877,421.10/14,487.49
  6. Step 6: Final answer
    x = 12,278.00

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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.