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Finding the Fourth Proportional to 70,398.98, 97,149.77 and 38,132.99

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Solution

The fourth proportional to 70,398.98, 97,149.77 and 38,132.99 is: 52,623.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,398.98 : 97,149.77 = 38,132.99 : x
  2. Step 2: Convert to fraction form
    70,398.98/97,149.77 = 38,132.99/x
  3. Step 3: Cross multiply
    70,398.98x = 97,149.77 × 38,132.99
  4. Step 4: Simplify right side
    70,398.98x = 3,704,610,722.16
  5. Step 5: Solve for x
    x = 3,704,610,722.16/70,398.98
  6. Step 6: Final answer
    x = 52,623.08

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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.