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Finding the Fourth Proportional to 14,409.71, 19,885.51 and 8,036.71

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Solution

The fourth proportional to 14,409.71, 19,885.51 and 8,036.71 is: 11,090.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,409.71 : 19,885.51 = 8,036.71 : x
  2. Step 2: Convert to fraction form
    14,409.71/19,885.51 = 8,036.71/x
  3. Step 3: Cross multiply
    14,409.71x = 19,885.51 × 8,036.71
  4. Step 4: Simplify right side
    14,409.71x = 159,814,020.74
  5. Step 5: Solve for x
    x = 159,814,020.74/14,409.71
  6. Step 6: Final answer
    x = 11,090.72

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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.