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Finding the Fourth Proportional to 14,101.64, 19,437.90 and 11,112.92

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Solution

The fourth proportional to 14,101.64, 19,437.90 and 11,112.92 is: 15,318.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,101.64 : 19,437.90 = 11,112.92 : x
  2. Step 2: Convert to fraction form
    14,101.64/19,437.90 = 11,112.92/x
  3. Step 3: Cross multiply
    14,101.64x = 19,437.90 × 11,112.92
  4. Step 4: Simplify right side
    14,101.64x = 216,011,827.67
  5. Step 5: Solve for x
    x = 216,011,827.67/14,101.64
  6. Step 6: Final answer
    x = 15,318.21

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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.