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Finding the Fourth Proportional to 58,472.36, 87,669.98 and 21,013.64

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Solution

The fourth proportional to 58,472.36, 87,669.98 and 21,013.64 is: 31,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,472.36 : 87,669.98 = 21,013.64 : x
  2. Step 2: Convert to fraction form
    58,472.36/87,669.98 = 21,013.64/x
  3. Step 3: Cross multiply
    58,472.36x = 87,669.98 × 21,013.64
  4. Step 4: Simplify right side
    58,472.36x = 1,842,265,398.53
  5. Step 5: Solve for x
    x = 1,842,265,398.53/58,472.36
  6. Step 6: Final answer
    x = 31,506.60

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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.