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Finding the Fourth Proportional to 3,526.62, 5,289.93 and 929.76

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Solution

The fourth proportional to 3,526.62, 5,289.93 and 929.76 is: 1,394.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,526.62 : 5,289.93 = 929.76 : x
  2. Step 2: Convert to fraction form
    3,526.62/5,289.93 = 929.76/x
  3. Step 3: Cross multiply
    3,526.62x = 5,289.93 × 929.76
  4. Step 4: Simplify right side
    3,526.62x = 4,918,365.32
  5. Step 5: Solve for x
    x = 4,918,365.32/3,526.62
  6. Step 6: Final answer
    x = 1,394.64

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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.