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Finding the Fourth Proportional to 56,667.20, 85,000.80 and 46,644.80

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Solution

The fourth proportional to 56,667.20, 85,000.80 and 46,644.80 is: 69,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,667.20 : 85,000.80 = 46,644.80 : x
  2. Step 2: Convert to fraction form
    56,667.20/85,000.80 = 46,644.80/x
  3. Step 3: Cross multiply
    56,667.20x = 85,000.80 × 46,644.80
  4. Step 4: Simplify right side
    56,667.20x = 3,964,845,315.84
  5. Step 5: Solve for x
    x = 3,964,845,315.84/56,667.20
  6. Step 6: Final answer
    x = 69,967.20

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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.