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Finding the Fourth Proportional to 14,244.48, 19,656.99 and 7,871.54

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Solution

The fourth proportional to 14,244.48, 19,656.99 and 7,871.54 is: 10,862.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,244.48 : 19,656.99 = 7,871.54 : x
  2. Step 2: Convert to fraction form
    14,244.48/19,656.99 = 7,871.54/x
  3. Step 3: Cross multiply
    14,244.48x = 19,656.99 × 7,871.54
  4. Step 4: Simplify right side
    14,244.48x = 154,730,684.78
  5. Step 5: Solve for x
    x = 154,730,684.78/14,244.48
  6. Step 6: Final answer
    x = 10,862.50

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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.