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Finding the Fourth Proportional to 14,869.94, 20,519.06 and 8,901.47

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Solution

The fourth proportional to 14,869.94, 20,519.06 and 8,901.47 is: 12,283.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,869.94 : 20,519.06 = 8,901.47 : x
  2. Step 2: Convert to fraction form
    14,869.94/20,519.06 = 8,901.47/x
  3. Step 3: Cross multiply
    14,869.94x = 20,519.06 × 8,901.47
  4. Step 4: Simplify right side
    14,869.94x = 182,649,803.81
  5. Step 5: Solve for x
    x = 182,649,803.81/14,869.94
  6. Step 6: Final answer
    x = 12,283.16

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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.