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Finding the Fourth Proportional to 9,308.19, 12,845.03 and 5,059.17

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Solution

The fourth proportional to 9,308.19, 12,845.03 and 5,059.17 is: 6,981.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,308.19 : 12,845.03 = 5,059.17 : x
  2. Step 2: Convert to fraction form
    9,308.19/12,845.03 = 5,059.17/x
  3. Step 3: Cross multiply
    9,308.19x = 12,845.03 × 5,059.17
  4. Step 4: Simplify right side
    9,308.19x = 64,985,165.13
  5. Step 5: Solve for x
    x = 64,985,165.13/9,308.19
  6. Step 6: Final answer
    x = 6,981.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.