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Finding the Fourth Proportional to 12,365.64, 17,065.02 and 6,776.64

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Solution

The fourth proportional to 12,365.64, 17,065.02 and 6,776.64 is: 9,352.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.64 : 17,065.02 = 6,776.64 : x
  2. Step 2: Convert to fraction form
    12,365.64/17,065.02 = 6,776.64/x
  3. Step 3: Cross multiply
    12,365.64x = 17,065.02 × 6,776.64
  4. Step 4: Simplify right side
    12,365.64x = 115,643,497.13
  5. Step 5: Solve for x
    x = 115,643,497.13/12,365.64
  6. Step 6: Final answer
    x = 9,352.00

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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.