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Finding the Fourth Proportional to 43,007.20, 64,510.80 and 32,509.60

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Solution

The fourth proportional to 43,007.20, 64,510.80 and 32,509.60 is: 48,764.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,007.20 : 64,510.80 = 32,509.60 : x
  2. Step 2: Convert to fraction form
    43,007.20/64,510.80 = 32,509.60/x
  3. Step 3: Cross multiply
    43,007.20x = 64,510.80 × 32,509.60
  4. Step 4: Simplify right side
    43,007.20x = 2,097,220,303.68
  5. Step 5: Solve for x
    x = 2,097,220,303.68/43,007.20
  6. Step 6: Final answer
    x = 48,764.40

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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.