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Finding the Fourth Proportional to 14,412.60, 21,621.51 and 7,017.06

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Solution

The fourth proportional to 14,412.60, 21,621.51 and 7,017.06 is: 10,526.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,412.60 : 21,621.51 = 7,017.06 : x
  2. Step 2: Convert to fraction form
    14,412.60/21,621.51 = 7,017.06/x
  3. Step 3: Cross multiply
    14,412.60x = 21,621.51 × 7,017.06
  4. Step 4: Simplify right side
    14,412.60x = 151,719,432.96
  5. Step 5: Solve for x
    x = 151,719,432.96/14,412.60
  6. Step 6: Final answer
    x = 10,526.86

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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.