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Finding the Fourth Proportional to 70,647.54, 97,487.96 and 40,425.93

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Solution

The fourth proportional to 70,647.54, 97,487.96 and 40,425.93 is: 55,784.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,647.54 : 97,487.96 = 40,425.93 : x
  2. Step 2: Convert to fraction form
    70,647.54/97,487.96 = 40,425.93/x
  3. Step 3: Cross multiply
    70,647.54x = 97,487.96 × 40,425.93
  4. Step 4: Simplify right side
    70,647.54x = 3,941,041,244.67
  5. Step 5: Solve for x
    x = 3,941,041,244.67/70,647.54
  6. Step 6: Final answer
    x = 55,784.55

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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.