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Finding the Fourth Proportional to 9,856.90, 14,768.88 and 7,079.32

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Solution

The fourth proportional to 9,856.90, 14,768.88 and 7,079.32 is: 10,607.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,856.90 : 14,768.88 = 7,079.32 : x
  2. Step 2: Convert to fraction form
    9,856.90/14,768.88 = 7,079.32/x
  3. Step 3: Cross multiply
    9,856.90x = 14,768.88 × 7,079.32
  4. Step 4: Simplify right side
    9,856.90x = 104,553,627.56
  5. Step 5: Solve for x
    x = 104,553,627.56/9,856.90
  6. Step 6: Final answer
    x = 10,607.15

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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.