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Finding the Fourth Proportional to 46,803.40, 70,205.40 and 18,725.80

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Solution

The fourth proportional to 46,803.40, 70,205.40 and 18,725.80 is: 28,088.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,803.40 : 70,205.40 = 18,725.80 : x
  2. Step 2: Convert to fraction form
    46,803.40/70,205.40 = 18,725.80/x
  3. Step 3: Cross multiply
    46,803.40x = 70,205.40 × 18,725.80
  4. Step 4: Simplify right side
    46,803.40x = 1,314,652,279.32
  5. Step 5: Solve for x
    x = 1,314,652,279.32/46,803.40
  6. Step 6: Final answer
    x = 28,088.82

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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.