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Finding the Fourth Proportional to 14,661.84, 21,990.42 and 4,271.16

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Solution

The fourth proportional to 14,661.84, 21,990.42 and 4,271.16 is: 6,406.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,661.84 : 21,990.42 = 4,271.16 : x
  2. Step 2: Convert to fraction form
    14,661.84/21,990.42 = 4,271.16/x
  3. Step 3: Cross multiply
    14,661.84x = 21,990.42 × 4,271.16
  4. Step 4: Simplify right side
    14,661.84x = 93,924,602.29
  5. Step 5: Solve for x
    x = 93,924,602.29/14,661.84
  6. Step 6: Final answer
    x = 6,406.06

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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.