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Finding the Fourth Proportional to 61,358.40, 91,972.80 and 35,006.40

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Solution

The fourth proportional to 61,358.40, 91,972.80 and 35,006.40 is: 52,472.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,358.40 : 91,972.80 = 35,006.40 : x
  2. Step 2: Convert to fraction form
    61,358.40/91,972.80 = 35,006.40/x
  3. Step 3: Cross multiply
    61,358.40x = 91,972.80 × 35,006.40
  4. Step 4: Simplify right side
    61,358.40x = 3,219,636,625.92
  5. Step 5: Solve for x
    x = 3,219,636,625.92/61,358.40
  6. Step 6: Final answer
    x = 52,472.63

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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.