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Finding the Fourth Proportional to 66,054.99, 99,058.59 and 28,106.80

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Solution

The fourth proportional to 66,054.99, 99,058.59 and 28,106.80 is: 42,150.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,054.99 : 99,058.59 = 28,106.80 : x
  2. Step 2: Convert to fraction form
    66,054.99/99,058.59 = 28,106.80/x
  3. Step 3: Cross multiply
    66,054.99x = 99,058.59 × 28,106.80
  4. Step 4: Simplify right side
    66,054.99x = 2,784,219,977.41
  5. Step 5: Solve for x
    x = 2,784,219,977.41/66,054.99
  6. Step 6: Final answer
    x = 42,150.03

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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.