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Finding the Fourth Proportional to 70,931.81, 97,892.79 and 52,995.68

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Solution

The fourth proportional to 70,931.81, 97,892.79 and 52,995.68 is: 73,139.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,931.81 : 97,892.79 = 52,995.68 : x
  2. Step 2: Convert to fraction form
    70,931.81/97,892.79 = 52,995.68/x
  3. Step 3: Cross multiply
    70,931.81x = 97,892.79 × 52,995.68
  4. Step 4: Simplify right side
    70,931.81x = 5,187,894,973.15
  5. Step 5: Solve for x
    x = 5,187,894,973.15/70,931.81
  6. Step 6: Final answer
    x = 73,139.19

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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.