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Finding the Fourth Proportional to 70,888.77, 97,830.86 and 39,057.66

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Solution

The fourth proportional to 70,888.77, 97,830.86 and 39,057.66 is: 53,901.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,888.77 : 97,830.86 = 39,057.66 : x
  2. Step 2: Convert to fraction form
    70,888.77/97,830.86 = 39,057.66/x
  3. Step 3: Cross multiply
    70,888.77x = 97,830.86 × 39,057.66
  4. Step 4: Simplify right side
    70,888.77x = 3,821,044,272.10
  5. Step 5: Solve for x
    x = 3,821,044,272.10/70,888.77
  6. Step 6: Final answer
    x = 53,901.97

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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.