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Finding the Fourth Proportional to 70,935.99, 97,892.35 and 39,106.03

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Solution

The fourth proportional to 70,935.99, 97,892.35 and 39,106.03 is: 53,966.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,935.99 : 97,892.35 = 39,106.03 : x
  2. Step 2: Convert to fraction form
    70,935.99/97,892.35 = 39,106.03/x
  3. Step 3: Cross multiply
    70,935.99x = 97,892.35 × 39,106.03
  4. Step 4: Simplify right side
    70,935.99x = 3,828,181,175.87
  5. Step 5: Solve for x
    x = 3,828,181,175.87/70,935.99
  6. Step 6: Final answer
    x = 53,966.70

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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.