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Finding the Fourth Proportional to 12,574.06, 18,869.04 and 7,031.04

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Solution

The fourth proportional to 12,574.06, 18,869.04 and 7,031.04 is: 10,551.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,574.06 : 18,869.04 = 7,031.04 : x
  2. Step 2: Convert to fraction form
    12,574.06/18,869.04 = 7,031.04/x
  3. Step 3: Cross multiply
    12,574.06x = 18,869.04 × 7,031.04
  4. Step 4: Simplify right side
    12,574.06x = 132,668,975.00
  5. Step 5: Solve for x
    x = 132,668,975.00/12,574.06
  6. Step 6: Final answer
    x = 10,551.01

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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.