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Finding the Fourth Proportional to 85,327.78, 128,008.15 and 32,733.16

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Solution

The fourth proportional to 85,327.78, 128,008.15 and 32,733.16 is: 49,106.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,327.78 : 128,008.15 = 32,733.16 : x
  2. Step 2: Convert to fraction form
    85,327.78/128,008.15 = 32,733.16/x
  3. Step 3: Cross multiply
    85,327.78x = 128,008.15 × 32,733.16
  4. Step 4: Simplify right side
    85,327.78x = 4,190,111,573.45
  5. Step 5: Solve for x
    x = 4,190,111,573.45/85,327.78
  6. Step 6: Final answer
    x = 49,106.07

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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.