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Finding the Fourth Proportional to 43,784.55, 65,695.04 and 21,598.19

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Solution

The fourth proportional to 43,784.55, 65,695.04 and 21,598.19 is: 32,406.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,784.55 : 65,695.04 = 21,598.19 : x
  2. Step 2: Convert to fraction form
    43,784.55/65,695.04 = 21,598.19/x
  3. Step 3: Cross multiply
    43,784.55x = 65,695.04 × 21,598.19
  4. Step 4: Simplify right side
    43,784.55x = 1,418,893,955.98
  5. Step 5: Solve for x
    x = 1,418,893,955.98/43,784.55
  6. Step 6: Final answer
    x = 32,406.27

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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.