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Finding the Fourth Proportional to 10,358.96, 15,525.45 and 8,159.00

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Solution

The fourth proportional to 10,358.96, 15,525.45 and 8,159.00 is: 12,228.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,358.96 : 15,525.45 = 8,159.00 : x
  2. Step 2: Convert to fraction form
    10,358.96/15,525.45 = 8,159.00/x
  3. Step 3: Cross multiply
    10,358.96x = 15,525.45 × 8,159.00
  4. Step 4: Simplify right side
    10,358.96x = 126,672,068.92
  5. Step 5: Solve for x
    x = 126,672,068.92/10,358.96
  6. Step 6: Final answer
    x = 12,228.27

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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.