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Finding the Fourth Proportional to 65,999.80, 99,008.60 and 19,252.28

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Solution

The fourth proportional to 65,999.80, 99,008.60 and 19,252.28 is: 28,881.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,999.80 : 99,008.60 = 19,252.28 : x
  2. Step 2: Convert to fraction form
    65,999.80/99,008.60 = 19,252.28/x
  3. Step 3: Cross multiply
    65,999.80x = 99,008.60 × 19,252.28
  4. Step 4: Simplify right side
    65,999.80x = 1,906,141,289.61
  5. Step 5: Solve for x
    x = 1,906,141,289.61/65,999.80
  6. Step 6: Final answer
    x = 28,881.02

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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.