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Finding the Fourth Proportional to 13,484.16, 18,610.08 and 7,895.04

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Solution

The fourth proportional to 13,484.16, 18,610.08 and 7,895.04 is: 10,896.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,484.16 : 18,610.08 = 7,895.04 : x
  2. Step 2: Convert to fraction form
    13,484.16/18,610.08 = 7,895.04/x
  3. Step 3: Cross multiply
    13,484.16x = 18,610.08 × 7,895.04
  4. Step 4: Simplify right side
    13,484.16x = 146,927,326.00
  5. Step 5: Solve for x
    x = 146,927,326.00/13,484.16
  6. Step 6: Final answer
    x = 10,896.29

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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.