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Finding the Fourth Proportional to 70,868.41, 97,798.40 and 39,037.99

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Solution

The fourth proportional to 70,868.41, 97,798.40 and 39,037.99 is: 53,872.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,868.41 : 97,798.40 = 39,037.99 : x
  2. Step 2: Convert to fraction form
    70,868.41/97,798.40 = 39,037.99/x
  3. Step 3: Cross multiply
    70,868.41x = 97,798.40 × 39,037.99
  4. Step 4: Simplify right side
    70,868.41x = 3,817,852,961.22
  5. Step 5: Solve for x
    x = 3,817,852,961.22/70,868.41
  6. Step 6: Final answer
    x = 53,872.42

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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.