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Finding the Fourth Proportional to 59,615.80, 83,585 and 59,615.80

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Solution

The fourth proportional to 59,615.80, 83,585 and 59,615.80 is: 83,585

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,615.80 : 83,585 = 59,615.80 : x
  2. Step 2: Convert to fraction form
    59,615.80/83,585 = 59,615.80/x
  3. Step 3: Cross multiply
    59,615.80x = 83,585 × 59,615.80
  4. Step 4: Simplify right side
    59,615.80x = 4,982,986,643
  5. Step 5: Solve for x
    x = 4,982,986,643/59,615.80
  6. Step 6: Final answer
    x = 83,585

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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.