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Finding the Fourth Proportional to 61,401.93, 91,980.99 and 47,313.10

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Solution

The fourth proportional to 61,401.93, 91,980.99 and 47,313.10 is: 70,875.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,401.93 : 91,980.99 = 47,313.10 : x
  2. Step 2: Convert to fraction form
    61,401.93/91,980.99 = 47,313.10/x
  3. Step 3: Cross multiply
    61,401.93x = 91,980.99 × 47,313.10
  4. Step 4: Simplify right side
    61,401.93x = 4,351,905,548.02
  5. Step 5: Solve for x
    x = 4,351,905,548.02/61,401.93
  6. Step 6: Final answer
    x = 70,875.71

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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.