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Finding the Fourth Proportional to 67,564.80, 93,264.48 and 40,708.80

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Solution

The fourth proportional to 67,564.80, 93,264.48 and 40,708.80 is: 56,193.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,564.80 : 93,264.48 = 40,708.80 : x
  2. Step 2: Convert to fraction form
    67,564.80/93,264.48 = 40,708.80/x
  3. Step 3: Cross multiply
    67,564.80x = 93,264.48 × 40,708.80
  4. Step 4: Simplify right side
    67,564.80x = 3,796,685,063.42
  5. Step 5: Solve for x
    x = 3,796,685,063.42/67,564.80
  6. Step 6: Final answer
    x = 56,193.24

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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.