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Finding the Fourth Proportional to 34,567.68, 47,703.68 and 19,664.64

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Solution

The fourth proportional to 34,567.68, 47,703.68 and 19,664.64 is: 27,137.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,567.68 : 47,703.68 = 19,664.64 : x
  2. Step 2: Convert to fraction form
    34,567.68/47,703.68 = 19,664.64/x
  3. Step 3: Cross multiply
    34,567.68x = 47,703.68 × 19,664.64
  4. Step 4: Simplify right side
    34,567.68x = 938,075,693.88
  5. Step 5: Solve for x
    x = 938,075,693.88/34,567.68
  6. Step 6: Final answer
    x = 27,137.36

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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.