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Finding the Fourth Proportional to 61,048.76, 91,463.78 and 21,580.70

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Solution

The fourth proportional to 61,048.76, 91,463.78 and 21,580.70 is: 32,332.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,048.76 : 91,463.78 = 21,580.70 : x
  2. Step 2: Convert to fraction form
    61,048.76/91,463.78 = 21,580.70/x
  3. Step 3: Cross multiply
    61,048.76x = 91,463.78 × 21,580.70
  4. Step 4: Simplify right side
    61,048.76x = 1,973,851,993.68
  5. Step 5: Solve for x
    x = 1,973,851,993.68/61,048.76
  6. Step 6: Final answer
    x = 32,332.39

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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.