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Finding the Fourth Proportional to 53,002.80, 79,511.76 and 17,952.48

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Solution

The fourth proportional to 53,002.80, 79,511.76 and 17,952.48 is: 26,931.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,002.80 : 79,511.76 = 17,952.48 : x
  2. Step 2: Convert to fraction form
    53,002.80/79,511.76 = 17,952.48/x
  3. Step 3: Cross multiply
    53,002.80x = 79,511.76 × 17,952.48
  4. Step 4: Simplify right side
    53,002.80x = 1,427,433,281.16
  5. Step 5: Solve for x
    x = 1,427,433,281.16/53,002.80
  6. Step 6: Final answer
    x = 26,931.28

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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.