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Finding the Fourth Proportional to 25,988, 35,863.56 and 14,812.16

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Solution

The fourth proportional to 25,988, 35,863.56 and 14,812.16 is: 20,440.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,988 : 35,863.56 = 14,812.16 : x
  2. Step 2: Convert to fraction form
    25,988/35,863.56 = 14,812.16/x
  3. Step 3: Cross multiply
    25,988x = 35,863.56 × 14,812.16
  4. Step 4: Simplify right side
    25,988x = 531,216,788.89
  5. Step 5: Solve for x
    x = 531,216,788.89/25,988
  6. Step 6: Final answer
    x = 20,440.85

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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.