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Finding the Fourth Proportional to 10,655.55, 14,702.70 and 7,478.55

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Solution

The fourth proportional to 10,655.55, 14,702.70 and 7,478.55 is: 10,319.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,655.55 : 14,702.70 = 7,478.55 : x
  2. Step 2: Convert to fraction form
    10,655.55/14,702.70 = 7,478.55/x
  3. Step 3: Cross multiply
    10,655.55x = 14,702.70 × 7,478.55
  4. Step 4: Simplify right side
    10,655.55x = 109,954,877.09
  5. Step 5: Solve for x
    x = 109,954,877.09/10,655.55
  6. Step 6: Final answer
    x = 10,319.02

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