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Finding the Fourth Proportional to 85,005.94, 127,507.47 and 29,600.50

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Solution

The fourth proportional to 85,005.94, 127,507.47 and 29,600.50 is: 44,400.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,005.94 : 127,507.47 = 29,600.50 : x
  2. Step 2: Convert to fraction form
    85,005.94/127,507.47 = 29,600.50/x
  3. Step 3: Cross multiply
    85,005.94x = 127,507.47 × 29,600.50
  4. Step 4: Simplify right side
    85,005.94x = 3,774,284,865.74
  5. Step 5: Solve for x
    x = 3,774,284,865.74/85,005.94
  6. Step 6: Final answer
    x = 44,400.25

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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.