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Finding the Fourth Proportional to 15,657.84, 23,486.72 and 3,971.03

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Solution

The fourth proportional to 15,657.84, 23,486.72 and 3,971.03 is: 5,956.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,657.84 : 23,486.72 = 3,971.03 : x
  2. Step 2: Convert to fraction form
    15,657.84/23,486.72 = 3,971.03/x
  3. Step 3: Cross multiply
    15,657.84x = 23,486.72 × 3,971.03
  4. Step 4: Simplify right side
    15,657.84x = 93,266,332.43
  5. Step 5: Solve for x
    x = 93,266,332.43/15,657.84
  6. Step 6: Final answer
    x = 5,956.53

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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.