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Finding the Fourth Proportional to 70,866.09, 97,795.21 and 39,034.99

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Solution

The fourth proportional to 70,866.09, 97,795.21 and 39,034.99 is: 53,868.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,866.09 : 97,795.21 = 39,034.99 : x
  2. Step 2: Convert to fraction form
    70,866.09/97,795.21 = 39,034.99/x
  3. Step 3: Cross multiply
    70,866.09x = 97,795.21 × 39,034.99
  4. Step 4: Simplify right side
    70,866.09x = 3,817,434,798.58
  5. Step 5: Solve for x
    x = 3,817,434,798.58/70,866.09
  6. Step 6: Final answer
    x = 53,868.29

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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.