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Finding the Fourth Proportional to 25,390.96, 35,039.06 and 14,060.20

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Solution

The fourth proportional to 25,390.96, 35,039.06 and 14,060.20 is: 19,402.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,390.96 : 35,039.06 = 14,060.20 : x
  2. Step 2: Convert to fraction form
    25,390.96/35,039.06 = 14,060.20/x
  3. Step 3: Cross multiply
    25,390.96x = 35,039.06 × 14,060.20
  4. Step 4: Simplify right side
    25,390.96x = 492,656,191.41
  5. Step 5: Solve for x
    x = 492,656,191.41/25,390.96
  6. Step 6: Final answer
    x = 19,402.82

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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.