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Finding the Fourth Proportional to 14,070.84, 21,087.63 and 7,482.84

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Solution

The fourth proportional to 14,070.84, 21,087.63 and 7,482.84 is: 11,214.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,070.84 : 21,087.63 = 7,482.84 : x
  2. Step 2: Convert to fraction form
    14,070.84/21,087.63 = 7,482.84/x
  3. Step 3: Cross multiply
    14,070.84x = 21,087.63 × 7,482.84
  4. Step 4: Simplify right side
    14,070.84x = 157,795,361.27
  5. Step 5: Solve for x
    x = 157,795,361.27/14,070.84
  6. Step 6: Final answer
    x = 11,214.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.