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Finding the Fourth Proportional to 14,984.76, 20,680.88 and 9,019.65

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Solution

The fourth proportional to 14,984.76, 20,680.88 and 9,019.65 is: 12,448.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,984.76 : 20,680.88 = 9,019.65 : x
  2. Step 2: Convert to fraction form
    14,984.76/20,680.88 = 9,019.65/x
  3. Step 3: Cross multiply
    14,984.76x = 20,680.88 × 9,019.65
  4. Step 4: Simplify right side
    14,984.76x = 186,534,254.19
  5. Step 5: Solve for x
    x = 186,534,254.19/14,984.76
  6. Step 6: Final answer
    x = 12,448.26

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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.