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Finding the Fourth Proportional to 14,243.34, 19,657.03 and 7,956.93

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Solution

The fourth proportional to 14,243.34, 19,657.03 and 7,956.93 is: 10,981.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,243.34 : 19,657.03 = 7,956.93 : x
  2. Step 2: Convert to fraction form
    14,243.34/19,657.03 = 7,956.93/x
  3. Step 3: Cross multiply
    14,243.34x = 19,657.03 × 7,956.93
  4. Step 4: Simplify right side
    14,243.34x = 156,409,680.46
  5. Step 5: Solve for x
    x = 156,409,680.46/14,243.34
  6. Step 6: Final answer
    x = 10,981.25

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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.