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Finding the Fourth Proportional to 7,107.66, 9,810.60 and 4,124.16

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Solution

The fourth proportional to 7,107.66, 9,810.60 and 4,124.16 is: 5,692.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.66 : 9,810.60 = 4,124.16 : x
  2. Step 2: Convert to fraction form
    7,107.66/9,810.60 = 4,124.16/x
  3. Step 3: Cross multiply
    7,107.66x = 9,810.60 × 4,124.16
  4. Step 4: Simplify right side
    7,107.66x = 40,460,484.10
  5. Step 5: Solve for x
    x = 40,460,484.10/7,107.66
  6. Step 6: Final answer
    x = 5,692.52

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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.