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Finding the Fourth Proportional to 23,340, 32,210.48 and 13,404.64

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Solution

The fourth proportional to 23,340, 32,210.48 and 13,404.64 is: 18,499.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,340 : 32,210.48 = 13,404.64 : x
  2. Step 2: Convert to fraction form
    23,340/32,210.48 = 13,404.64/x
  3. Step 3: Cross multiply
    23,340x = 32,210.48 × 13,404.64
  4. Step 4: Simplify right side
    23,340x = 431,769,888.63
  5. Step 5: Solve for x
    x = 431,769,888.63/23,340
  6. Step 6: Final answer
    x = 18,499.14

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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.