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Finding the Fourth Proportional to 10,693.60, 16,045.20 and 4,847.20

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Solution

The fourth proportional to 10,693.60, 16,045.20 and 4,847.20 is: 7,272.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,693.60 : 16,045.20 = 4,847.20 : x
  2. Step 2: Convert to fraction form
    10,693.60/16,045.20 = 4,847.20/x
  3. Step 3: Cross multiply
    10,693.60x = 16,045.20 × 4,847.20
  4. Step 4: Simplify right side
    10,693.60x = 77,774,293.44
  5. Step 5: Solve for x
    x = 77,774,293.44/10,693.60
  6. Step 6: Final answer
    x = 7,272.98

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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.