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Finding the Fourth Proportional to 14,951.95, 20,643.63 and 9,295.15

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Solution

The fourth proportional to 14,951.95, 20,643.63 and 9,295.15 is: 12,833.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,951.95 : 20,643.63 = 9,295.15 : x
  2. Step 2: Convert to fraction form
    14,951.95/20,643.63 = 9,295.15/x
  3. Step 3: Cross multiply
    14,951.95x = 20,643.63 × 9,295.15
  4. Step 4: Simplify right side
    14,951.95x = 191,885,637.39
  5. Step 5: Solve for x
    x = 191,885,637.39/14,951.95
  6. Step 6: Final answer
    x = 12,833.49

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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.