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Finding the Fourth Proportional to 8,358.53, 11,538.48 and 5,337.60

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Solution

The fourth proportional to 8,358.53, 11,538.48 and 5,337.60 is: 7,368.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358.53 : 11,538.48 = 5,337.60 : x
  2. Step 2: Convert to fraction form
    8,358.53/11,538.48 = 5,337.60/x
  3. Step 3: Cross multiply
    8,358.53x = 11,538.48 × 5,337.60
  4. Step 4: Simplify right side
    8,358.53x = 61,587,813.83
  5. Step 5: Solve for x
    x = 61,587,813.83/8,358.53
  6. Step 6: Final answer
    x = 7,368.26

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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.