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Finding the Fourth Proportional to 7,160.00, 10,712.05 and 6,328.94

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Solution

The fourth proportional to 7,160.00, 10,712.05 and 6,328.94 is: 9,468.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.00 : 10,712.05 = 6,328.94 : x
  2. Step 2: Convert to fraction form
    7,160.00/10,712.05 = 6,328.94/x
  3. Step 3: Cross multiply
    7,160.00x = 10,712.05 × 6,328.94
  4. Step 4: Simplify right side
    7,160.00x = 67,795,852.34
  5. Step 5: Solve for x
    x = 67,795,852.34/7,160.00
  6. Step 6: Final answer
    x = 9,468.70

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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.