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Finding the Fourth Proportional to 7,645.51, 10,549.20 and 4,996.81

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Solution

The fourth proportional to 7,645.51, 10,549.20 and 4,996.81 is: 6,894.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,645.51 : 10,549.20 = 4,996.81 : x
  2. Step 2: Convert to fraction form
    7,645.51/10,549.20 = 4,996.81/x
  3. Step 3: Cross multiply
    7,645.51x = 10,549.20 × 4,996.81
  4. Step 4: Simplify right side
    7,645.51x = 52,712,348.05
  5. Step 5: Solve for x
    x = 52,712,348.05/7,645.51
  6. Step 6: Final answer
    x = 6,894.55

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Half scale
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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.