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Finding the Fourth Proportional to 60,690.84, 83,705.88 and 39,476.88

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Solution

The fourth proportional to 60,690.84, 83,705.88 and 39,476.88 is: 54,447.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,690.84 : 83,705.88 = 39,476.88 : x
  2. Step 2: Convert to fraction form
    60,690.84/83,705.88 = 39,476.88/x
  3. Step 3: Cross multiply
    60,690.84x = 83,705.88 × 39,476.88
  4. Step 4: Simplify right side
    60,690.84x = 3,304,446,980.05
  5. Step 5: Solve for x
    x = 3,304,446,980.05/60,690.84
  6. Step 6: Final answer
    x = 54,447.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.