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Finding the Fourth Proportional to 25,915.57, 35,730.79 and 16,948.87

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Solution

The fourth proportional to 25,915.57, 35,730.79 and 16,948.87 is: 23,368.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,915.57 : 35,730.79 = 16,948.87 : x
  2. Step 2: Convert to fraction form
    25,915.57/35,730.79 = 16,948.87/x
  3. Step 3: Cross multiply
    25,915.57x = 35,730.79 × 16,948.87
  4. Step 4: Simplify right side
    25,915.57x = 605,596,383.01
  5. Step 5: Solve for x
    x = 605,596,383.01/25,915.57
  6. Step 6: Final answer
    x = 23,368.05

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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.