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Finding the Fourth Proportional to 3,607.96, 5,411.70 and 1,417.06

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Solution

The fourth proportional to 3,607.96, 5,411.70 and 1,417.06 is: 2,125.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.96 : 5,411.70 = 1,417.06 : x
  2. Step 2: Convert to fraction form
    3,607.96/5,411.70 = 1,417.06/x
  3. Step 3: Cross multiply
    3,607.96x = 5,411.70 × 1,417.06
  4. Step 4: Simplify right side
    3,607.96x = 7,668,703.60
  5. Step 5: Solve for x
    x = 7,668,703.60/3,607.96
  6. Step 6: Final answer
    x = 2,125.50

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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.