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Finding the Fourth Proportional to 58,638.84, 87,980.40 and 35,281.68

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Solution

The fourth proportional to 58,638.84, 87,980.40 and 35,281.68 is: 52,935.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,638.84 : 87,980.40 = 35,281.68 : x
  2. Step 2: Convert to fraction form
    58,638.84/87,980.40 = 35,281.68/x
  3. Step 3: Cross multiply
    58,638.84x = 87,980.40 × 35,281.68
  4. Step 4: Simplify right side
    58,638.84x = 3,104,096,319.07
  5. Step 5: Solve for x
    x = 3,104,096,319.07/58,638.84
  6. Step 6: Final answer
    x = 52,935.84

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1.5x scale

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.