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Finding the Fourth Proportional to 25,954.76, 35,815.65 and 15,342.33

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Solution

The fourth proportional to 25,954.76, 35,815.65 and 15,342.33 is: 21,171.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,954.76 : 35,815.65 = 15,342.33 : x
  2. Step 2: Convert to fraction form
    25,954.76/35,815.65 = 15,342.33/x
  3. Step 3: Cross multiply
    25,954.76x = 35,815.65 × 15,342.33
  4. Step 4: Simplify right side
    25,954.76x = 549,495,521.46
  5. Step 5: Solve for x
    x = 549,495,521.46/25,954.76
  6. Step 6: Final answer
    x = 21,171.29

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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.