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Finding the Fourth Proportional to 63,931.92, 88,224.84 and 40,071.84

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Solution

The fourth proportional to 63,931.92, 88,224.84 and 40,071.84 is: 55,298.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,931.92 : 88,224.84 = 40,071.84 : x
  2. Step 2: Convert to fraction form
    63,931.92/88,224.84 = 40,071.84/x
  3. Step 3: Cross multiply
    63,931.92x = 88,224.84 × 40,071.84
  4. Step 4: Simplify right side
    63,931.92x = 3,535,331,672.51
  5. Step 5: Solve for x
    x = 3,535,331,672.51/63,931.92
  6. Step 6: Final answer
    x = 55,298.38

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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.