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Finding the Fourth Proportional to 66,030.48, 99,047.64 and 16,782.48

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Solution

The fourth proportional to 66,030.48, 99,047.64 and 16,782.48 is: 25,174.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,030.48 : 99,047.64 = 16,782.48 : x
  2. Step 2: Convert to fraction form
    66,030.48/99,047.64 = 16,782.48/x
  3. Step 3: Cross multiply
    66,030.48x = 99,047.64 × 16,782.48
  4. Step 4: Simplify right side
    66,030.48x = 1,662,265,037.35
  5. Step 5: Solve for x
    x = 1,662,265,037.35/66,030.48
  6. Step 6: Final answer
    x = 25,174.21

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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.