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Finding the Fourth Proportional to 56,386.80, 84,493.80 and 53,276.40

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Solution

The fourth proportional to 56,386.80, 84,493.80 and 53,276.40 is: 79,832.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,386.80 : 84,493.80 = 53,276.40 : x
  2. Step 2: Convert to fraction form
    56,386.80/84,493.80 = 53,276.40/x
  3. Step 3: Cross multiply
    56,386.80x = 84,493.80 × 53,276.40
  4. Step 4: Simplify right side
    56,386.80x = 4,501,525,486.32
  5. Step 5: Solve for x
    x = 4,501,525,486.32/56,386.80
  6. Step 6: Final answer
    x = 79,832.97

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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.