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Finding the Fourth Proportional to 15,660, 23,490 and 4,716

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Solution

The fourth proportional to 15,660, 23,490 and 4,716 is: 7,074

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,660 : 23,490 = 4,716 : x
  2. Step 2: Convert to fraction form
    15,660/23,490 = 4,716/x
  3. Step 3: Cross multiply
    15,660x = 23,490 × 4,716
  4. Step 4: Simplify right side
    15,660x = 110,778,840
  5. Step 5: Solve for x
    x = 110,778,840/15,660
  6. Step 6: Final answer
    x = 7,074

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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.