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Finding the Fourth Proportional to 70,499.65, 97,295.76 and 38,674.75

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Solution

The fourth proportional to 70,499.65, 97,295.76 and 38,674.75 is: 53,374.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,499.65 : 97,295.76 = 38,674.75 : x
  2. Step 2: Convert to fraction form
    70,499.65/97,295.76 = 38,674.75/x
  3. Step 3: Cross multiply
    70,499.65x = 97,295.76 × 38,674.75
  4. Step 4: Simplify right side
    70,499.65x = 3,762,889,194.06
  5. Step 5: Solve for x
    x = 3,762,889,194.06/70,499.65
  6. Step 6: Final answer
    x = 53,374.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.