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Finding the Fourth Proportional to 25,680.68, 35,440.02 and 14,502.68

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Solution

The fourth proportional to 25,680.68, 35,440.02 and 14,502.68 is: 20,014.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,680.68 : 35,440.02 = 14,502.68 : x
  2. Step 2: Convert to fraction form
    25,680.68/35,440.02 = 14,502.68/x
  3. Step 3: Cross multiply
    25,680.68x = 35,440.02 × 14,502.68
  4. Step 4: Simplify right side
    25,680.68x = 513,975,269.25
  5. Step 5: Solve for x
    x = 513,975,269.25/25,680.68
  6. Step 6: Final answer
    x = 20,014.08

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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.