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Finding the Fourth Proportional to 10,904.10, 16,356.15 and 6,530.10

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Solution

The fourth proportional to 10,904.10, 16,356.15 and 6,530.10 is: 9,795.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,904.10 : 16,356.15 = 6,530.10 : x
  2. Step 2: Convert to fraction form
    10,904.10/16,356.15 = 6,530.10/x
  3. Step 3: Cross multiply
    10,904.10x = 16,356.15 × 6,530.10
  4. Step 4: Simplify right side
    10,904.10x = 106,807,295.12
  5. Step 5: Solve for x
    x = 106,807,295.12/10,904.10
  6. Step 6: Final answer
    x = 9,795.15

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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.