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Finding the Fourth Proportional to 70,466.56, 97,328.96 and 51,315.68

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Solution

The fourth proportional to 70,466.56, 97,328.96 and 51,315.68 is: 70,877.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,466.56 : 97,328.96 = 51,315.68 : x
  2. Step 2: Convert to fraction form
    70,466.56/97,328.96 = 51,315.68/x
  3. Step 3: Cross multiply
    70,466.56x = 97,328.96 × 51,315.68
  4. Step 4: Simplify right side
    70,466.56x = 4,994,501,766.09
  5. Step 5: Solve for x
    x = 4,994,501,766.09/70,466.56
  6. Step 6: Final answer
    x = 70,877.62

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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.