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Finding the Fourth Proportional to 70,888.85, 97,826.63 and 39,057.47

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Solution

The fourth proportional to 70,888.85, 97,826.63 and 39,057.47 is: 53,899.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,888.85 : 97,826.63 = 39,057.47 : x
  2. Step 2: Convert to fraction form
    70,888.85/97,826.63 = 39,057.47/x
  3. Step 3: Cross multiply
    70,888.85x = 97,826.63 × 39,057.47
  4. Step 4: Simplify right side
    70,888.85x = 3,820,860,348.86
  5. Step 5: Solve for x
    x = 3,820,860,348.86/70,888.85
  6. Step 6: Final answer
    x = 53,899.31

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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.