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Finding the Fourth Proportional to 64,561.52, 88,888.92 and 55,092.08

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Solution

The fourth proportional to 64,561.52, 88,888.92 and 55,092.08 is: 75,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,561.52 : 88,888.92 = 55,092.08 : x
  2. Step 2: Convert to fraction form
    64,561.52/88,888.92 = 55,092.08/x
  3. Step 3: Cross multiply
    64,561.52x = 88,888.92 × 55,092.08
  4. Step 4: Simplify right side
    64,561.52x = 4,897,075,491.75
  5. Step 5: Solve for x
    x = 4,897,075,491.75/64,561.52
  6. Step 6: Final answer
    x = 75,851.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.