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Finding the Fourth Proportional to 25,407.71, 35,059.13 and 14,074.39

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Solution

The fourth proportional to 25,407.71, 35,059.13 and 14,074.39 is: 19,420.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,407.71 : 35,059.13 = 14,074.39 : x
  2. Step 2: Convert to fraction form
    25,407.71/35,059.13 = 14,074.39/x
  3. Step 3: Cross multiply
    25,407.71x = 35,059.13 × 14,074.39
  4. Step 4: Simplify right side
    25,407.71x = 493,435,894.91
  5. Step 5: Solve for x
    x = 493,435,894.91/25,407.71
  6. Step 6: Final answer
    x = 19,420.72

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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.