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Finding the Fourth Proportional to 57,656.58, 86,477.71 and 15,539.95

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Solution

The fourth proportional to 57,656.58, 86,477.71 and 15,539.95 is: 23,308.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,656.58 : 86,477.71 = 15,539.95 : x
  2. Step 2: Convert to fraction form
    57,656.58/86,477.71 = 15,539.95/x
  3. Step 3: Cross multiply
    57,656.58x = 86,477.71 × 15,539.95
  4. Step 4: Simplify right side
    57,656.58x = 1,343,859,289.51
  5. Step 5: Solve for x
    x = 1,343,859,289.51/57,656.58
  6. Step 6: Final answer
    x = 23,308.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.