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Finding the Fourth Proportional to 4,698.56, 7,047.76 and 1,411.68

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Solution

The fourth proportional to 4,698.56, 7,047.76 and 1,411.68 is: 2,117.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,698.56 : 7,047.76 = 1,411.68 : x
  2. Step 2: Convert to fraction form
    4,698.56/7,047.76 = 1,411.68/x
  3. Step 3: Cross multiply
    4,698.56x = 7,047.76 × 1,411.68
  4. Step 4: Simplify right side
    4,698.56x = 9,949,181.84
  5. Step 5: Solve for x
    x = 9,949,181.84/4,698.56
  6. Step 6: Final answer
    x = 2,117.50

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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.