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Finding the Fourth Proportional to 14,445.59, 19,940.05 and 9,347.98

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Solution

The fourth proportional to 14,445.59, 19,940.05 and 9,347.98 is: 12,903.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,445.59 : 19,940.05 = 9,347.98 : x
  2. Step 2: Convert to fraction form
    14,445.59/19,940.05 = 9,347.98/x
  3. Step 3: Cross multiply
    14,445.59x = 19,940.05 × 9,347.98
  4. Step 4: Simplify right side
    14,445.59x = 186,399,217.61
  5. Step 5: Solve for x
    x = 186,399,217.61/14,445.59
  6. Step 6: Final answer
    x = 12,903.54

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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.