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Finding the Fourth Proportional to 70,602.80, 97,428.94 and 38,336.15

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Solution

The fourth proportional to 70,602.80, 97,428.94 and 38,336.15 is: 52,902.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,602.80 : 97,428.94 = 38,336.15 : x
  2. Step 2: Convert to fraction form
    70,602.80/97,428.94 = 38,336.15/x
  3. Step 3: Cross multiply
    70,602.80x = 97,428.94 × 38,336.15
  4. Step 4: Simplify right side
    70,602.80x = 3,735,050,458.18
  5. Step 5: Solve for x
    x = 3,735,050,458.18/70,602.80
  6. Step 6: Final answer
    x = 52,902.30

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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.