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Finding the Fourth Proportional to 60,921.84, 91,381.80 and 19,368.24

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Solution

The fourth proportional to 60,921.84, 91,381.80 and 19,368.24 is: 29,052.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,921.84 : 91,381.80 = 19,368.24 : x
  2. Step 2: Convert to fraction form
    60,921.84/91,381.80 = 19,368.24/x
  3. Step 3: Cross multiply
    60,921.84x = 91,381.80 × 19,368.24
  4. Step 4: Simplify right side
    60,921.84x = 1,769,904,634.03
  5. Step 5: Solve for x
    x = 1,769,904,634.03/60,921.84
  6. Step 6: Final answer
    x = 29,052.05

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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.