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Finding the Fourth Proportional to 53,899.20, 75,614.40 and 53,899.20

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Solution

The fourth proportional to 53,899.20, 75,614.40 and 53,899.20 is: 75,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,899.20 : 75,614.40 = 53,899.20 : x
  2. Step 2: Convert to fraction form
    53,899.20/75,614.40 = 53,899.20/x
  3. Step 3: Cross multiply
    53,899.20x = 75,614.40 × 53,899.20
  4. Step 4: Simplify right side
    53,899.20x = 4,075,555,668.48
  5. Step 5: Solve for x
    x = 4,075,555,668.48/53,899.20
  6. Step 6: Final answer
    x = 75,614.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.