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Finding the Fourth Proportional to 55,870.85, 83,808.86 and 18,434.19

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Solution

The fourth proportional to 55,870.85, 83,808.86 and 18,434.19 is: 27,652.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,870.85 : 83,808.86 = 18,434.19 : x
  2. Step 2: Convert to fraction form
    55,870.85/83,808.86 = 18,434.19/x
  3. Step 3: Cross multiply
    55,870.85x = 83,808.86 × 18,434.19
  4. Step 4: Simplify right side
    55,870.85x = 1,544,948,448.92
  5. Step 5: Solve for x
    x = 1,544,948,448.92/55,870.85
  6. Step 6: Final answer
    x = 27,652.14

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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.