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Finding the Fourth Proportional to 14,101.48, 19,459.98 and 7,813.84

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Solution

The fourth proportional to 14,101.48, 19,459.98 and 7,813.84 is: 10,783.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,101.48 : 19,459.98 = 7,813.84 : x
  2. Step 2: Convert to fraction form
    14,101.48/19,459.98 = 7,813.84/x
  3. Step 3: Cross multiply
    14,101.48x = 19,459.98 × 7,813.84
  4. Step 4: Simplify right side
    14,101.48x = 152,057,170.12
  5. Step 5: Solve for x
    x = 152,057,170.12/14,101.48
  6. Step 6: Final answer
    x = 10,783.06

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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.