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Finding the Fourth Proportional to 15,639.96, 23,459.94 and 5,259

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Solution

The fourth proportional to 15,639.96, 23,459.94 and 5,259 is: 7,888.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.96 : 23,459.94 = 5,259 : x
  2. Step 2: Convert to fraction form
    15,639.96/23,459.94 = 5,259/x
  3. Step 3: Cross multiply
    15,639.96x = 23,459.94 × 5,259
  4. Step 4: Simplify right side
    15,639.96x = 123,375,824.46
  5. Step 5: Solve for x
    x = 123,375,824.46/15,639.96
  6. Step 6: Final answer
    x = 7,888.50

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.