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Finding the Fourth Proportional to 45,908.70, 68,863.05 and 40,368.30

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Solution

The fourth proportional to 45,908.70, 68,863.05 and 40,368.30 is: 60,552.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,908.70 : 68,863.05 = 40,368.30 : x
  2. Step 2: Convert to fraction form
    45,908.70/68,863.05 = 40,368.30/x
  3. Step 3: Cross multiply
    45,908.70x = 68,863.05 × 40,368.30
  4. Step 4: Simplify right side
    45,908.70x = 2,779,884,261.32
  5. Step 5: Solve for x
    x = 2,779,884,261.32/45,908.70
  6. Step 6: Final answer
    x = 60,552.45

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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.