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Finding the Fourth Proportional to 7,175.36, 9,903.95 and 4,657.32

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Solution

The fourth proportional to 7,175.36, 9,903.95 and 4,657.32 is: 6,428.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,175.36 : 9,903.95 = 4,657.32 : x
  2. Step 2: Convert to fraction form
    7,175.36/9,903.95 = 4,657.32/x
  3. Step 3: Cross multiply
    7,175.36x = 9,903.95 × 4,657.32
  4. Step 4: Simplify right side
    7,175.36x = 46,125,841.13
  5. Step 5: Solve for x
    x = 46,125,841.13/7,175.36
  6. Step 6: Final answer
    x = 6,428.37

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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.