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Finding the Fourth Proportional to 70,068.02, 105,099.09 and 32,615.21

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Solution

The fourth proportional to 70,068.02, 105,099.09 and 32,615.21 is: 48,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,068.02 : 105,099.09 = 32,615.21 : x
  2. Step 2: Convert to fraction form
    70,068.02/105,099.09 = 32,615.21/x
  3. Step 3: Cross multiply
    70,068.02x = 105,099.09 × 32,615.21
  4. Step 4: Simplify right side
    70,068.02x = 3,427,828,891.16
  5. Step 5: Solve for x
    x = 3,427,828,891.16/70,068.02
  6. Step 6: Final answer
    x = 48,921.45

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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.