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Finding the Fourth Proportional to 59,681.80, 89,522.70 and 18,123.40

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Solution

The fourth proportional to 59,681.80, 89,522.70 and 18,123.40 is: 27,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,681.80 : 89,522.70 = 18,123.40 : x
  2. Step 2: Convert to fraction form
    59,681.80/89,522.70 = 18,123.40/x
  3. Step 3: Cross multiply
    59,681.80x = 89,522.70 × 18,123.40
  4. Step 4: Simplify right side
    59,681.80x = 1,622,455,701.18
  5. Step 5: Solve for x
    x = 1,622,455,701.18/59,681.80
  6. Step 6: Final answer
    x = 27,185.10

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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.