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Finding the Fourth Proportional to 58,765, 88,147.50 and 14,989

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Solution

The fourth proportional to 58,765, 88,147.50 and 14,989 is: 22,483.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,765 : 88,147.50 = 14,989 : x
  2. Step 2: Convert to fraction form
    58,765/88,147.50 = 14,989/x
  3. Step 3: Cross multiply
    58,765x = 88,147.50 × 14,989
  4. Step 4: Simplify right side
    58,765x = 1,321,242,877.50
  5. Step 5: Solve for x
    x = 1,321,242,877.50/58,765
  6. Step 6: Final answer
    x = 22,483.50

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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.