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Finding the Fourth Proportional to 70,059.67, 105,070.05 and 19,447.06

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Solution

The fourth proportional to 70,059.67, 105,070.05 and 19,447.06 is: 29,165.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,059.67 : 105,070.05 = 19,447.06 : x
  2. Step 2: Convert to fraction form
    70,059.67/105,070.05 = 19,447.06/x
  3. Step 3: Cross multiply
    70,059.67x = 105,070.05 × 19,447.06
  4. Step 4: Simplify right side
    70,059.67x = 2,043,303,769.05
  5. Step 5: Solve for x
    x = 2,043,303,769.05/70,059.67
  6. Step 6: Final answer
    x = 29,165.19

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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.