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Finding the Fourth Proportional to 25,907.88, 35,753.06 and 15,302.76

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Solution

The fourth proportional to 25,907.88, 35,753.06 and 15,302.76 is: 21,117.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,907.88 : 35,753.06 = 15,302.76 : x
  2. Step 2: Convert to fraction form
    25,907.88/35,753.06 = 15,302.76/x
  3. Step 3: Cross multiply
    25,907.88x = 35,753.06 × 15,302.76
  4. Step 4: Simplify right side
    25,907.88x = 547,120,496.45
  5. Step 5: Solve for x
    x = 547,120,496.45/25,907.88
  6. Step 6: Final answer
    x = 21,117.92

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Double scale
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Similar ratio
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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.