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Finding the Fourth Proportional to 7,569.28, 11,425.01 and 7,569.28

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Solution

The fourth proportional to 7,569.28, 11,425.01 and 7,569.28 is: 11,425.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,569.28 : 11,425.01 = 7,569.28 : x
  2. Step 2: Convert to fraction form
    7,569.28/11,425.01 = 7,569.28/x
  3. Step 3: Cross multiply
    7,569.28x = 11,425.01 × 7,569.28
  4. Step 4: Simplify right side
    7,569.28x = 86,479,099.69
  5. Step 5: Solve for x
    x = 86,479,099.69/7,569.28
  6. Step 6: Final answer
    x = 11,425.01

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Half scale
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Double scale
Find fourth proportional to 7,570.28, 11,426.52 and 7,570.28
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.