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Finding the Fourth Proportional to 45,503.99, 68,256.14 and 13,913.93

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Solution

The fourth proportional to 45,503.99, 68,256.14 and 13,913.93 is: 20,870.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,503.99 : 68,256.14 = 13,913.93 : x
  2. Step 2: Convert to fraction form
    45,503.99/68,256.14 = 13,913.93/x
  3. Step 3: Cross multiply
    45,503.99x = 68,256.14 × 13,913.93
  4. Step 4: Simplify right side
    45,503.99x = 949,711,359.46
  5. Step 5: Solve for x
    x = 949,711,359.46/45,503.99
  6. Step 6: Final answer
    x = 20,870.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.