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Finding the Fourth Proportional to 61,852.84, 85,401.30 and 38,011.48

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Solution

The fourth proportional to 61,852.84, 85,401.30 and 38,011.48 is: 52,483.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,852.84 : 85,401.30 = 38,011.48 : x
  2. Step 2: Convert to fraction form
    61,852.84/85,401.30 = 38,011.48/x
  3. Step 3: Cross multiply
    61,852.84x = 85,401.30 × 38,011.48
  4. Step 4: Simplify right side
    61,852.84x = 3,246,229,806.92
  5. Step 5: Solve for x
    x = 3,246,229,806.92/61,852.84
  6. Step 6: Final answer
    x = 52,483.12

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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.