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Finding the Fourth Proportional to 70,437.28, 105,646.67 and 34,884.76

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Solution

The fourth proportional to 70,437.28, 105,646.67 and 34,884.76 is: 52,322.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,437.28 : 105,646.67 = 34,884.76 : x
  2. Step 2: Convert to fraction form
    70,437.28/105,646.67 = 34,884.76/x
  3. Step 3: Cross multiply
    70,437.28x = 105,646.67 × 34,884.76
  4. Step 4: Simplify right side
    70,437.28x = 3,685,458,025.09
  5. Step 5: Solve for x
    x = 3,685,458,025.09/70,437.28
  6. Step 6: Final answer
    x = 52,322.55

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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.