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Finding the Fourth Proportional to 45,905.70, 68,870.70 and 16,320.45

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Solution

The fourth proportional to 45,905.70, 68,870.70 and 16,320.45 is: 24,484.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,905.70 : 68,870.70 = 16,320.45 : x
  2. Step 2: Convert to fraction form
    45,905.70/68,870.70 = 16,320.45/x
  3. Step 3: Cross multiply
    45,905.70x = 68,870.70 × 16,320.45
  4. Step 4: Simplify right side
    45,905.70x = 1,124,000,815.82
  5. Step 5: Solve for x
    x = 1,124,000,815.82/45,905.70
  6. Step 6: Final answer
    x = 24,484.99

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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.