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Finding the Fourth Proportional to 14,774.90, 20,384.93 and 9,737.31

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Solution

The fourth proportional to 14,774.90, 20,384.93 and 9,737.31 is: 13,434.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,774.90 : 20,384.93 = 9,737.31 : x
  2. Step 2: Convert to fraction form
    14,774.90/20,384.93 = 9,737.31/x
  3. Step 3: Cross multiply
    14,774.90x = 20,384.93 × 9,737.31
  4. Step 4: Simplify right side
    14,774.90x = 198,494,334.05
  5. Step 5: Solve for x
    x = 198,494,334.05/14,774.90
  6. Step 6: Final answer
    x = 13,434.57

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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.