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Finding the Fourth Proportional to 58,172.88, 87,076.98 and 40,055.40

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Solution

The fourth proportional to 58,172.88, 87,076.98 and 40,055.40 is: 59,957.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,172.88 : 87,076.98 = 40,055.40 : x
  2. Step 2: Convert to fraction form
    58,172.88/87,076.98 = 40,055.40/x
  3. Step 3: Cross multiply
    58,172.88x = 87,076.98 × 40,055.40
  4. Step 4: Simplify right side
    58,172.88x = 3,487,903,264.69
  5. Step 5: Solve for x
    x = 3,487,903,264.69/58,172.88
  6. Step 6: Final answer
    x = 59,957.55

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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.