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Finding the Fourth Proportional to 35,421.62, 48,878.88 and 19,506.92

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Solution

The fourth proportional to 35,421.62, 48,878.88 and 19,506.92 is: 26,917.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,421.62 : 48,878.88 = 19,506.92 : x
  2. Step 2: Convert to fraction form
    35,421.62/48,878.88 = 19,506.92/x
  3. Step 3: Cross multiply
    35,421.62x = 48,878.88 × 19,506.92
  4. Step 4: Simplify right side
    35,421.62x = 953,476,401.85
  5. Step 5: Solve for x
    x = 953,476,401.85/35,421.62
  6. Step 6: Final answer
    x = 26,917.92

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Double scale
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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.