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Finding the Fourth Proportional to 58,002.81, 87,399.42 and 47,703.60

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Solution

The fourth proportional to 58,002.81, 87,399.42 and 47,703.60 is: 71,880.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,002.81 : 87,399.42 = 47,703.60 : x
  2. Step 2: Convert to fraction form
    58,002.81/87,399.42 = 47,703.60/x
  3. Step 3: Cross multiply
    58,002.81x = 87,399.42 × 47,703.60
  4. Step 4: Simplify right side
    58,002.81x = 4,169,266,971.91
  5. Step 5: Solve for x
    x = 4,169,266,971.91/58,002.81
  6. Step 6: Final answer
    x = 71,880.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.