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Finding the Fourth Proportional to 65,328.53, 97,744.96 and 38,688.77

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Solution

The fourth proportional to 65,328.53, 97,744.96 and 38,688.77 is: 57,886.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,328.53 : 97,744.96 = 38,688.77 : x
  2. Step 2: Convert to fraction form
    65,328.53/97,744.96 = 38,688.77/x
  3. Step 3: Cross multiply
    65,328.53x = 97,744.96 × 38,688.77
  4. Step 4: Simplify right side
    65,328.53x = 3,781,632,568.82
  5. Step 5: Solve for x
    x = 3,781,632,568.82/65,328.53
  6. Step 6: Final answer
    x = 57,886.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.