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Finding the Fourth Proportional to 35,877.78, 49,510.98 and 19,961.96

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Solution

The fourth proportional to 35,877.78, 49,510.98 and 19,961.96 is: 27,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,877.78 : 49,510.98 = 19,961.96 : x
  2. Step 2: Convert to fraction form
    35,877.78/49,510.98 = 19,961.96/x
  3. Step 3: Cross multiply
    35,877.78x = 49,510.98 × 19,961.96
  4. Step 4: Simplify right side
    35,877.78x = 988,335,954.77
  5. Step 5: Solve for x
    x = 988,335,954.77/35,877.78
  6. Step 6: Final answer
    x = 27,547.30

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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.