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Finding the Fourth Proportional to 55,887.95, 83,840.24 and 18,451.98

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Solution

The fourth proportional to 55,887.95, 83,840.24 and 18,451.98 is: 27,680.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,887.95 : 83,840.24 = 18,451.98 : x
  2. Step 2: Convert to fraction form
    55,887.95/83,840.24 = 18,451.98/x
  3. Step 3: Cross multiply
    55,887.95x = 83,840.24 × 18,451.98
  4. Step 4: Simplify right side
    55,887.95x = 1,547,018,190.11
  5. Step 5: Solve for x
    x = 1,547,018,190.11/55,887.95
  6. Step 6: Final answer
    x = 27,680.71

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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.