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Finding the Fourth Proportional to 58,501.80, 87,752.70 and 57,918.60

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Solution

The fourth proportional to 58,501.80, 87,752.70 and 57,918.60 is: 86,877.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,501.80 : 87,752.70 = 57,918.60 : x
  2. Step 2: Convert to fraction form
    58,501.80/87,752.70 = 57,918.60/x
  3. Step 3: Cross multiply
    58,501.80x = 87,752.70 × 57,918.60
  4. Step 4: Simplify right side
    58,501.80x = 5,082,513,530.22
  5. Step 5: Solve for x
    x = 5,082,513,530.22/58,501.80
  6. Step 6: Final answer
    x = 86,877.90

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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.