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Finding the Fourth Proportional to 25,969.16, 35,835.42 and 15,893.42

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Solution

The fourth proportional to 25,969.16, 35,835.42 and 15,893.42 is: 21,931.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,969.16 : 35,835.42 = 15,893.42 : x
  2. Step 2: Convert to fraction form
    25,969.16/35,835.42 = 15,893.42/x
  3. Step 3: Cross multiply
    25,969.16x = 35,835.42 × 15,893.42
  4. Step 4: Simplify right side
    25,969.16x = 569,547,380.94
  5. Step 5: Solve for x
    x = 569,547,380.94/25,969.16
  6. Step 6: Final answer
    x = 21,931.68

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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.