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Finding the Fourth Proportional to 34,155, 47,142.54 and 19,259.64

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Solution

The fourth proportional to 34,155, 47,142.54 and 19,259.64 is: 26,583.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,155 : 47,142.54 = 19,259.64 : x
  2. Step 2: Convert to fraction form
    34,155/47,142.54 = 19,259.64/x
  3. Step 3: Cross multiply
    34,155x = 47,142.54 × 19,259.64
  4. Step 4: Simplify right side
    34,155x = 907,948,349.09
  5. Step 5: Solve for x
    x = 907,948,349.09/34,155
  6. Step 6: Final answer
    x = 26,583.18

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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.