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Finding the Fourth Proportional to 15,670.68, 23,483.93 and 8,653.85

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Solution

The fourth proportional to 15,670.68, 23,483.93 and 8,653.85 is: 12,968.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,670.68 : 23,483.93 = 8,653.85 : x
  2. Step 2: Convert to fraction form
    15,670.68/23,483.93 = 8,653.85/x
  3. Step 3: Cross multiply
    15,670.68x = 23,483.93 × 8,653.85
  4. Step 4: Simplify right side
    15,670.68x = 203,226,467.10
  5. Step 5: Solve for x
    x = 203,226,467.10/15,670.68
  6. Step 6: Final answer
    x = 12,968.58

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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.