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Finding the Fourth Proportional to 70,980.92, 97,953.47 and 40,768.20

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Solution

The fourth proportional to 70,980.92, 97,953.47 and 40,768.20 is: 56,260.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,980.92 : 97,953.47 = 40,768.20 : x
  2. Step 2: Convert to fraction form
    70,980.92/97,953.47 = 40,768.20/x
  3. Step 3: Cross multiply
    70,980.92x = 97,953.47 × 40,768.20
  4. Step 4: Simplify right side
    70,980.92x = 3,993,386,466.69
  5. Step 5: Solve for x
    x = 3,993,386,466.69/70,980.92
  6. Step 6: Final answer
    x = 56,260.00

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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.