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Finding the Fourth Proportional to 55,798.08, 83,706.12 and 18,347.28

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Solution

The fourth proportional to 55,798.08, 83,706.12 and 18,347.28 is: 27,523.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,798.08 : 83,706.12 = 18,347.28 : x
  2. Step 2: Convert to fraction form
    55,798.08/83,706.12 = 18,347.28/x
  3. Step 3: Cross multiply
    55,798.08x = 83,706.12 × 18,347.28
  4. Step 4: Simplify right side
    55,798.08x = 1,535,779,621.35
  5. Step 5: Solve for x
    x = 1,535,779,621.35/55,798.08
  6. Step 6: Final answer
    x = 27,523.88

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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.