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Finding the Fourth Proportional to 58,886.55, 88,276.37 and 21,420.14

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Solution

The fourth proportional to 58,886.55, 88,276.37 and 21,420.14 is: 32,110.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,886.55 : 88,276.37 = 21,420.14 : x
  2. Step 2: Convert to fraction form
    58,886.55/88,276.37 = 21,420.14/x
  3. Step 3: Cross multiply
    58,886.55x = 88,276.37 × 21,420.14
  4. Step 4: Simplify right side
    58,886.55x = 1,890,891,762.71
  5. Step 5: Solve for x
    x = 1,890,891,762.71/58,886.55
  6. Step 6: Final answer
    x = 32,110.76

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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.