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Finding the Fourth Proportional to 7,482.78, 10,326.02 and 4,125.59

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Solution

The fourth proportional to 7,482.78, 10,326.02 and 4,125.59 is: 5,693.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,482.78 : 10,326.02 = 4,125.59 : x
  2. Step 2: Convert to fraction form
    7,482.78/10,326.02 = 4,125.59/x
  3. Step 3: Cross multiply
    7,482.78x = 10,326.02 × 4,125.59
  4. Step 4: Simplify right side
    7,482.78x = 42,600,924.85
  5. Step 5: Solve for x
    x = 42,600,924.85/7,482.78
  6. Step 6: Final answer
    x = 5,693.19

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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.