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Finding the Fourth Proportional to 63,706.84, 87,918.44 and 35,413

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Solution

The fourth proportional to 63,706.84, 87,918.44 and 35,413 is: 48,871.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,706.84 : 87,918.44 = 35,413 : x
  2. Step 2: Convert to fraction form
    63,706.84/87,918.44 = 35,413/x
  3. Step 3: Cross multiply
    63,706.84x = 87,918.44 × 35,413
  4. Step 4: Simplify right side
    63,706.84x = 3,113,455,715.72
  5. Step 5: Solve for x
    x = 3,113,455,715.72/63,706.84
  6. Step 6: Final answer
    x = 48,871.61

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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.