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Finding the Fourth Proportional to 60,705.01, 91,002.05 and 21,240.60

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Solution

The fourth proportional to 60,705.01, 91,002.05 and 21,240.60 is: 31,841.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,705.01 : 91,002.05 = 21,240.60 : x
  2. Step 2: Convert to fraction form
    60,705.01/91,002.05 = 21,240.60/x
  3. Step 3: Cross multiply
    60,705.01x = 91,002.05 × 21,240.60
  4. Step 4: Simplify right side
    60,705.01x = 1,932,937,775.42
  5. Step 5: Solve for x
    x = 1,932,937,775.42/60,705.01
  6. Step 6: Final answer
    x = 31,841.49

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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.