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Finding the Fourth Proportional to 9,355.52, 12,904.32 and 7,365.32

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Solution

The fourth proportional to 9,355.52, 12,904.32 and 7,365.32 is: 10,159.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,355.52 : 12,904.32 = 7,365.32 : x
  2. Step 2: Convert to fraction form
    9,355.52/12,904.32 = 7,365.32/x
  3. Step 3: Cross multiply
    9,355.52x = 12,904.32 × 7,365.32
  4. Step 4: Simplify right side
    9,355.52x = 95,044,446.18
  5. Step 5: Solve for x
    x = 95,044,446.18/9,355.52
  6. Step 6: Final answer
    x = 10,159.18

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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.