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Finding the Fourth Proportional to 32,420.51, 48,616.99 and 12,695.93

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Solution

The fourth proportional to 32,420.51, 48,616.99 and 12,695.93 is: 19,038.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,420.51 : 48,616.99 = 12,695.93 : x
  2. Step 2: Convert to fraction form
    32,420.51/48,616.99 = 12,695.93/x
  3. Step 3: Cross multiply
    32,420.51x = 48,616.99 × 12,695.93
  4. Step 4: Simplify right side
    32,420.51x = 617,237,901.85
  5. Step 5: Solve for x
    x = 617,237,901.85/32,420.51
  6. Step 6: Final answer
    x = 19,038.50

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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.