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Finding the Fourth Proportional to 14,329.81, 19,775.22 and 7,956.49

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Solution

The fourth proportional to 14,329.81, 19,775.22 and 7,956.49 is: 10,980.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,329.81 : 19,775.22 = 7,956.49 : x
  2. Step 2: Convert to fraction form
    14,329.81/19,775.22 = 7,956.49/x
  3. Step 3: Cross multiply
    14,329.81x = 19,775.22 × 7,956.49
  4. Step 4: Simplify right side
    14,329.81x = 157,341,340.18
  5. Step 5: Solve for x
    x = 157,341,340.18/14,329.81
  6. Step 6: Final answer
    x = 10,980.00

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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.