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Finding the Fourth Proportional to 60,659.18, 91,006.84 and 43,830.21

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Solution

The fourth proportional to 60,659.18, 91,006.84 and 43,830.21 is: 65,758.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,659.18 : 91,006.84 = 43,830.21 : x
  2. Step 2: Convert to fraction form
    60,659.18/91,006.84 = 43,830.21/x
  3. Step 3: Cross multiply
    60,659.18x = 91,006.84 × 43,830.21
  4. Step 4: Simplify right side
    60,659.18x = 3,988,849,304.70
  5. Step 5: Solve for x
    x = 3,988,849,304.70/60,659.18
  6. Step 6: Final answer
    x = 65,758.38

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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.