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Finding the Fourth Proportional to 45,875.99, 68,801.49 and 12,588.17

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Solution

The fourth proportional to 45,875.99, 68,801.49 and 12,588.17 is: 18,878.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,875.99 : 68,801.49 = 12,588.17 : x
  2. Step 2: Convert to fraction form
    45,875.99/68,801.49 = 12,588.17/x
  3. Step 3: Cross multiply
    45,875.99x = 68,801.49 × 12,588.17
  4. Step 4: Simplify right side
    45,875.99x = 866,084,508.37
  5. Step 5: Solve for x
    x = 866,084,508.37/45,875.99
  6. Step 6: Final answer
    x = 18,878.82

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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.