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Finding the Fourth Proportional to 58,492.76, 87,756.14 and 21,052.16

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Solution

The fourth proportional to 58,492.76, 87,756.14 and 21,052.16 is: 31,584.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,492.76 : 87,756.14 = 21,052.16 : x
  2. Step 2: Convert to fraction form
    58,492.76/87,756.14 = 21,052.16/x
  3. Step 3: Cross multiply
    58,492.76x = 87,756.14 × 21,052.16
  4. Step 4: Simplify right side
    58,492.76x = 1,847,455,914.11
  5. Step 5: Solve for x
    x = 1,847,455,914.11/58,492.76
  6. Step 6: Final answer
    x = 31,584.35

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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.