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Finding the Fourth Proportional to 14,304.35, 19,740.17 and 7,931.03

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Solution

The fourth proportional to 14,304.35, 19,740.17 and 7,931.03 is: 10,944.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,304.35 : 19,740.17 = 7,931.03 : x
  2. Step 2: Convert to fraction form
    14,304.35/19,740.17 = 7,931.03/x
  3. Step 3: Cross multiply
    14,304.35x = 19,740.17 × 7,931.03
  4. Step 4: Simplify right side
    14,304.35x = 156,559,742.12
  5. Step 5: Solve for x
    x = 156,559,742.12/14,304.35
  6. Step 6: Final answer
    x = 10,944.91

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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.