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Finding the Fourth Proportional to 55,631.80, 83,410.80 and 30,683.80

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Solution

The fourth proportional to 55,631.80, 83,410.80 and 30,683.80 is: 46,005.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,631.80 : 83,410.80 = 30,683.80 : x
  2. Step 2: Convert to fraction form
    55,631.80/83,410.80 = 30,683.80/x
  3. Step 3: Cross multiply
    55,631.80x = 83,410.80 × 30,683.80
  4. Step 4: Simplify right side
    55,631.80x = 2,559,360,305.04
  5. Step 5: Solve for x
    x = 2,559,360,305.04/55,631.80
  6. Step 6: Final answer
    x = 46,005.35

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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.