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Finding the Fourth Proportional to 58,389.71, 79,994.19 and 56,203.03

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Solution

The fourth proportional to 58,389.71, 79,994.19 and 56,203.03 is: 76,998.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,389.71 : 79,994.19 = 56,203.03 : x
  2. Step 2: Convert to fraction form
    58,389.71/79,994.19 = 56,203.03/x
  3. Step 3: Cross multiply
    58,389.71x = 79,994.19 × 56,203.03
  4. Step 4: Simplify right side
    58,389.71x = 4,495,915,860.40
  5. Step 5: Solve for x
    x = 4,495,915,860.40/58,389.71
  6. Step 6: Final answer
    x = 76,998.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.