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Finding the Fourth Proportional to 68,855.40, 95,005.70 and 45,017.08

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Solution

The fourth proportional to 68,855.40, 95,005.70 and 45,017.08 is: 62,113.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,855.40 : 95,005.70 = 45,017.08 : x
  2. Step 2: Convert to fraction form
    68,855.40/95,005.70 = 45,017.08/x
  3. Step 3: Cross multiply
    68,855.40x = 95,005.70 × 45,017.08
  4. Step 4: Simplify right side
    68,855.40x = 4,276,879,197.36
  5. Step 5: Solve for x
    x = 4,276,879,197.36/68,855.40
  6. Step 6: Final answer
    x = 62,113.93

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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.