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Finding the Fourth Proportional to 7,482.76, 10,326.15 and 4,079.77

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Solution

The fourth proportional to 7,482.76, 10,326.15 and 4,079.77 is: 5,630.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,482.76 : 10,326.15 = 4,079.77 : x
  2. Step 2: Convert to fraction form
    7,482.76/10,326.15 = 4,079.77/x
  3. Step 3: Cross multiply
    7,482.76x = 10,326.15 × 4,079.77
  4. Step 4: Simplify right side
    7,482.76x = 42,128,316.99
  5. Step 5: Solve for x
    x = 42,128,316.99/7,482.76
  6. Step 6: Final answer
    x = 5,630.05

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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.