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Finding the Fourth Proportional to 25,990.57, 35,866.80 and 14,660.16

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Solution

The fourth proportional to 25,990.57, 35,866.80 and 14,660.16 is: 20,230.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,990.57 : 35,866.80 = 14,660.16 : x
  2. Step 2: Convert to fraction form
    25,990.57/35,866.80 = 14,660.16/x
  3. Step 3: Cross multiply
    25,990.57x = 35,866.80 × 14,660.16
  4. Step 4: Simplify right side
    25,990.57x = 525,812,892.19
  5. Step 5: Solve for x
    x = 525,812,892.19/25,990.57
  6. Step 6: Final answer
    x = 20,230.91

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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.