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Finding the Fourth Proportional to 9,957.60, 13,742.37 and 5,710.16

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Solution

The fourth proportional to 9,957.60, 13,742.37 and 5,710.16 is: 7,880.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,957.60 : 13,742.37 = 5,710.16 : x
  2. Step 2: Convert to fraction form
    9,957.60/13,742.37 = 5,710.16/x
  3. Step 3: Cross multiply
    9,957.60x = 13,742.37 × 5,710.16
  4. Step 4: Simplify right side
    9,957.60x = 78,471,165.84
  5. Step 5: Solve for x
    x = 78,471,165.84/9,957.60
  6. Step 6: Final answer
    x = 7,880.53

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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.