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Finding the Fourth Proportional to 14,073.51, 19,420.59 and 7,698.90

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Solution

The fourth proportional to 14,073.51, 19,420.59 and 7,698.90 is: 10,624.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,073.51 : 19,420.59 = 7,698.90 : x
  2. Step 2: Convert to fraction form
    14,073.51/19,420.59 = 7,698.90/x
  3. Step 3: Cross multiply
    14,073.51x = 19,420.59 × 7,698.90
  4. Step 4: Simplify right side
    14,073.51x = 149,517,180.35
  5. Step 5: Solve for x
    x = 149,517,180.35/14,073.51
  6. Step 6: Final answer
    x = 10,624.01

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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.