Home / 56,863.09-85,276.16-18,902.16

Finding the Fourth Proportional to 56,863.09, 85,276.16 and 18,902.16

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Solution

The fourth proportional to 56,863.09, 85,276.16 and 18,902.16 is: 28,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,863.09 : 85,276.16 = 18,902.16 : x
  2. Step 2: Convert to fraction form
    56,863.09/85,276.16 = 18,902.16/x
  3. Step 3: Cross multiply
    56,863.09x = 85,276.16 × 18,902.16
  4. Step 4: Simplify right side
    56,863.09x = 1,611,903,880.95
  5. Step 5: Solve for x
    x = 1,611,903,880.95/56,863.09
  6. Step 6: Final answer
    x = 28,347.10

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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.