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Finding the Fourth Proportional to 14,419.87, 19,900.16 and 10,876.93

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Solution

The fourth proportional to 14,419.87, 19,900.16 and 10,876.93 is: 15,010.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,419.87 : 19,900.16 = 10,876.93 : x
  2. Step 2: Convert to fraction form
    14,419.87/19,900.16 = 10,876.93/x
  3. Step 3: Cross multiply
    14,419.87x = 19,900.16 × 10,876.93
  4. Step 4: Simplify right side
    14,419.87x = 216,452,647.31
  5. Step 5: Solve for x
    x = 216,452,647.31/14,419.87
  6. Step 6: Final answer
    x = 15,010.72

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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.