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Finding the Fourth Proportional to 70,656.71, 97,426.75 and 54,487.49

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Solution

The fourth proportional to 70,656.71, 97,426.75 and 54,487.49 is: 75,131.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,656.71 : 97,426.75 = 54,487.49 : x
  2. Step 2: Convert to fraction form
    70,656.71/97,426.75 = 54,487.49/x
  3. Step 3: Cross multiply
    70,656.71x = 97,426.75 × 54,487.49
  4. Step 4: Simplify right side
    70,656.71x = 5,308,538,545.17
  5. Step 5: Solve for x
    x = 5,308,538,545.17/70,656.71
  6. Step 6: Final answer
    x = 75,131.42

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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.