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Finding the Fourth Proportional to 70,841.24, 97,755 and 39,011.84

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Solution

The fourth proportional to 70,841.24, 97,755 and 39,011.84 is: 53,833.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,841.24 : 97,755 = 39,011.84 : x
  2. Step 2: Convert to fraction form
    70,841.24/97,755 = 39,011.84/x
  3. Step 3: Cross multiply
    70,841.24x = 97,755 × 39,011.84
  4. Step 4: Simplify right side
    70,841.24x = 3,813,602,419.20
  5. Step 5: Solve for x
    x = 3,813,602,419.20/70,841.24
  6. Step 6: Final answer
    x = 53,833.08

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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.