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Finding the Fourth Proportional to 63,154.31, 87,153.65 and 34,859.99

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Solution

The fourth proportional to 63,154.31, 87,153.65 and 34,859.99 is: 48,107.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,154.31 : 87,153.65 = 34,859.99 : x
  2. Step 2: Convert to fraction form
    63,154.31/87,153.65 = 34,859.99/x
  3. Step 3: Cross multiply
    63,154.31x = 87,153.65 × 34,859.99
  4. Step 4: Simplify right side
    63,154.31x = 3,038,175,018.85
  5. Step 5: Solve for x
    x = 3,038,175,018.85/63,154.31
  6. Step 6: Final answer
    x = 48,107.17

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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.