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Finding the Fourth Proportional to 84,762.88, 127,113.72 and 25,580.32

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Solution

The fourth proportional to 84,762.88, 127,113.72 and 25,580.32 is: 38,361.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,762.88 : 127,113.72 = 25,580.32 : x
  2. Step 2: Convert to fraction form
    84,762.88/127,113.72 = 25,580.32/x
  3. Step 3: Cross multiply
    84,762.88x = 127,113.72 × 25,580.32
  4. Step 4: Simplify right side
    84,762.88x = 3,251,609,633.99
  5. Step 5: Solve for x
    x = 3,251,609,633.99/84,762.88
  6. Step 6: Final answer
    x = 38,361.25

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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.