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Finding the Fourth Proportional to 10,455.54, 15,662.86 and 6,935.07

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Solution

The fourth proportional to 10,455.54, 15,662.86 and 6,935.07 is: 10,389.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.54 : 15,662.86 = 6,935.07 : x
  2. Step 2: Convert to fraction form
    10,455.54/15,662.86 = 6,935.07/x
  3. Step 3: Cross multiply
    10,455.54x = 15,662.86 × 6,935.07
  4. Step 4: Simplify right side
    10,455.54x = 108,623,030.50
  5. Step 5: Solve for x
    x = 108,623,030.50/10,455.54
  6. Step 6: Final answer
    x = 10,389.04

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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.