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Finding the Fourth Proportional to 14,973.86, 20,663.88 and 9,008.98

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Solution

The fourth proportional to 14,973.86, 20,663.88 and 9,008.98 is: 12,432.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,973.86 : 20,663.88 = 9,008.98 : x
  2. Step 2: Convert to fraction form
    14,973.86/20,663.88 = 9,008.98/x
  3. Step 3: Cross multiply
    14,973.86x = 20,663.88 × 9,008.98
  4. Step 4: Simplify right side
    14,973.86x = 186,160,481.64
  5. Step 5: Solve for x
    x = 186,160,481.64/14,973.86
  6. Step 6: Final answer
    x = 12,432.36

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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.